House of Blois

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "House of Blois" – news · newspapers · books · scholar · JSTOR (September 2018)

House of Blois
Royal house
Arms of the House of Blois
Country	West Francia France Navarre England Jerusalem
Founded	906; 1118 years ago (906)
Founder	Theobald the Elder
Final ruler	Blois: Margaret, Countess of Blois Champagne and Navarre: Joan I of Navarre Sully and Boisebelle: Mary, Lady of Sully and Princess of Boisebelle Sancerre: Margaret, Countess of Sancerre
Titles	King of England King of Navarre King of Jerusalem Chamberlain of the King of France Constable of France Treasurer of France Grand Butler of France Marshal of France Seneschal of France Grand Bottler of France Bottler of France Regent of France Lesser titles: Governor of Navarre Chamberlain of the Duke of Burgundy Governor of Burgundy Marshal of Burgundy Count palatine Prince of Boisbelle Prince of Achaea Duke of Normandy Duke of Nicaea Count of Blois Count of Champagne Count of Chartres Count of Châteaudun Count of Troyes Count of Beauvais Count of Sancerre Count of Provins Count of Boulogne Count of Reims Count of Aumale Count of Mortain Count of Dreux Count of Meaux Count of Tours Count of Omois Count of Brie Count of Gien Count of La Chapelle Count of Saint-Florentin Count of Château-Thierry Count of Bar-sur-Aube Count of Vitry-le-François Count of Clermont-en-Beauvaisis Co-Governor of Flanders Lieutenant General of Artois Earl of York Viscount of Blois Viscount of Chartres Viscount of Tours Viscount of Troyes Viscount of Dijon Governor of Languedoc Commander of La Villedieu-en-Fontenette Commander of Temple-les-Dole Commander of Sales Commander of Montseugny Lord of Sancerre Lord of Holderness Lord of Sagonne Lord of Lacarre Lord of Champlitte Lord of Sancergeus Lord of Noirmoutier Lord of Meillant Lord of Marchéville Lord of Blet Lord of Beaujeu Lord of Herry Lord of Châteaumeillant Lord of Provins Lord of Cors Lord of Romefort Lord of Craon Lord of Talmay Lord of Flagey Lord of Oiselay Lord of Fénay Lord of Ambrault Lord of Vailly Lord of Villebon Lord of Vaillon Lord of Charpingnon Lord of Charenton Lord of Barlieu Lord of Assigny Lord of Charenton Lord of Condé Lord of Bommiers Lord of Coësmes Lord of Boisgibault Lord of Ouges Lord of Plancy Lord of Soësmes Lord of Larrey Lord of Grancey Lord of Nonancourt Lord of Varennes Lord of Collonges Lord of Brochon Lord of Chalucet Lord of Luzy Lord of Berry Lord of Longuey Lord of Quingey Lord of Chevigny Lord of Vierzon lord of Villargoix Lord of Erry Lord of Partie Lord of Yenville Lord of Clemency Lord of Vonges Lord of Pleurs Lord of Balagny Lord of Vercel Lord of Domprel Lord of Bressey Lord of Ouges Lord of Brochon Lord of Longvy Lord of Flagey Lord of Foucherans Lord of Barges Lord of Mantoche Lord of Villeneuve Lord of Nogent Lord of Champagny Lord of Orval Lord of Épineuil Lord of Bruyères Lord of Argent Lord of Chailly Lord of Dienville Lord of Bressey Lord of Vaux Lord of Collonges Lord of Brochon Lord of Seveux Lord of Châlucet Lord of Mercueil Lord of Saulx Lord of Frolois Lord of Massingy Lord of Drambon Lord of Obsonville Lord of Champvans Lord of La Loupe Lord of Le Pondy Lord of La Grange Lord of La Cordille Lord of La Chapelle Lord of La Chapolette Lord of Saint-Rémy Lord of Saint-Valery Lord of Saint-Août Lord of Saint-Brisson Lord of Montreuil-Bellay Lord of Menetou-Salon Lord of Château-Thierry Lord of La Ferté-Loupière Lord of La Motte-Ternant Lord of La Motte-Sully Lord of Sully-sur-Loire Lord of Pontailler-sur-Saône Lord of Por-sur-Chaon Lord of Aix-dans-Gilon Lord of Mont-de-Villers Lord of Magny-sur-Tille Lord of Vailly-sur-Sauldre Lord of Saulon-la-Rue Lord of Saulon-la-Chapelle Lord of Tart-le-Haut Lord of Tart-l'Abbaye Lord of Tart-le-Bas Lord of Villers-les-Pots Lord of Ainay-le-Vieil Lord of Nogent-lès-Montbard Lord of Heuilley-sur-Saône Lord of Magny-sur-Tille Lord of Venarey-les-Laumes Lord of Granges-sous-Grignon Lord of Lamarche-sur-Saône Lord of Courcelles-sous-Grignon Lord of Châtillon-sur-Loing Lord of Charenton-du-Cher Lord of La Roche-sur-l'Ognon Lord of Saint-Michel-sur-Loire Lady of Cernoy Lady of Aubry Lady of Maupas Lady of Brion Lady of Bueil Baron of Talmay Baron of Flagey Baron of Antigny Baron of Châlus Baron of Montferrand Baron of Drambon Baron of Barges Baron of Rigney Baron of Pusey Baron of Montferrand Baron of Vaux Baron of Port-sur-Saône Cardinal Priest of Santa Sabina Archbishop of Reims Archbishop of Bourges Archbishop of Sens Archbishop-elect of York Bishop of Paris Bishop of Chartres Bishop of Winchester Bishop of Tournai Bishop of Worcester Bishop of Châlons-sur-Marne Bishop-designate of Salisbury Abbot of Glastonbury Abbot of Fécamp Abbot of Westminster Abbot of Cluny Abbot of Lagny Abbot of Norfolk Abbot of Surrey Abbot of Chertsey Abbot of Holme Abbot of St Benet’s Abbey Abbess of Fontevraud Abbess of Sainte-Trinité Abbess of Romsey Prior of Bermondsey Prior of La Charité-sur-Loire Prior of Beaumont Canon of Autun
Estate(s)	Blois, Champagne, Navarre, England, Sancerre, Boulogne, Aumale, etc
Dissolution	1???
Cadet branches	House of Blois-Champagne House of Blois-Chartres House of Blois-Navarre House of Sancerre House of Lacarre House of Sully House of Sully-Beaujeu House of Champlitte House of Champlitte-Pontailler House of Aumale

The House of Blois (French: [blwa]) was a noble family that arose in the Kingdom of West Francia in the early 10th century, and whose prominent members were often named Theobald (Thibaud, Thibault, Thibaut in French).

This lineage came from Theobald the Elder, viscount of Tours before 908. Theobald became viscount of Blois before 922. Afterwards the House of Blois accumulated the counties of Blois, Chartres, Châteaudun and as successors of Herbertians the counties of Troyes, Reims and Meaux - core of the County of Champagne, and finally the kingdom of Navarre.

The House of Blois-Champagne, which was founded by Theobold II in 1025, split into several branches. The House of Blois-Chartres, which was founded by Theobold V of Blois inherited the counties of Blois and Chartres and others in 1152. His descendants would hold the counties until the deaths of Margaret and Isabella, to which the branch became extinct in 1249. The House of Blois-Navarre, which was founded by Theobold I of Navarre, when he inherited the throne from his uncle, Sancho Garcés VI. This branch became the senior line later and eventually became extinct in 1305 with the death of Joan I of Navarre, wife of Philip IV of France. Champagne and Navarre passed to the Capetian dynasty. The House of Sancerre, which was founded by Stephen I, Count of Sancerre, a younger son of Theobold II, Count of Champagne. He inherited the county on his father's death. This branch became extinct at the death of Margaret of Sancerre in 1418 or 1419. The final branch, the House of Lacarre, which was founded by Juan Enriquez, the illegitimate son of Henry I of Navarre.

When Louis VII of France was greatly threatened by the vast collection of territories in the person of Henry II of England, he chose a wife from the House of Blois-Champagne (Adela of Champagne) as a counterpoise to Angevin power.

When William married the Lady of Sully, Adela, sometime after 1100, he became jure uxoris Count or Lord of Sully. This would make him establish a cadet branch in Sully. This branch would also form its own cadet branch, the House of Sully-Beaujeu, which was when Odo, the son of Gilles III, Lord of Sully, acquired the Lordship of Beaujeu.

Sometime during or past 1126, Odo I was taken over by his maternal family. He then became Lord of Champlitte, which he likely inherited from his mother, Isabella, or from the generosity of his uncle Renaud III, Count of Burgundy.^[1] He in turn would establish a new cadet branch in Champlitte. This Branch would also establish its own branch, the House of Champlitte-Pontailler. Which was when William I, son of Odo I, acquired the Lordship of Pontailler.

King Stephen I of England, 1135–1154, was both a member of the House of Blois and the last Anglo-Norman King, being the grandson of William the Conqueror through his daughter Adela of Normandy.^[2]

A branch of the family was established in Sancerre by Stephen I of Sancerre, a younger son of Theobald II, Count of Champagne. This branch became extinct at the death of Margaret of Sancerre in 1418 or 1419.

Ruler		Born	Reign	Ruling part	Consort	Death	Notes
Theobald I the Trickster		913 Son of Theobald the Elder and Richilde	928 – 975	County of Blois	Luitgarde of Vermandois four children	975 aged 61-62	First ruler of Blois. Until 1041, the counts of Blois were also Counts of Tours.
Odo I Rousselet		950 Son of Theobald I and Luitgarde of Vermandois	975 – 12 March 996	County of Blois	Bertha of Burgundy 983 six children	12 March 996 aged 45-46	Children of Theobald I, divided their inheritance. Emma's property was inherited by her descendants.
Emma		c.950 Son of Theobald I and Luitgarde of Vermandois	975 – 27 December 1003	County of Blois (at Chinon and Bourgueil)	William IV, Duke of Aquitaine 968 two children	27 December 1003 aged 54-55
Chinon and Bourgueil annexed to Aquitaine
Regency of Bertha of Burgundy (996-999)							Left no heirs, he was succeeded by his brother Odo.
Theobald II		983 First son of Odo I and Bertha of Burgundy	12 March 996 – 11 July 1004	County of Blois	Unmarried	11 July 1004 aged 20-21
Odo II/I of Champagne		c.985 Second son of Odo I and Bertha of Burgundy	11 July 1004 – 15 November 1037	County of Blois (with Champagne since 1022)	Maud of Normandy 1003/4 no children Ermengarde of Auvergne c.1005 three/four children	15 November 1037 aged 51-52	Seized Champagne for himself, without royal approval, and kept these territories.
Theobald III		1012 First son of Odo II/ and Ermengarde of Auvergne	15 November 1037 – 30 September 1089	County of Blois (with Champagne since 1066)	Gersende of Maine no children Gundrada[7] one child Adele of Valois c.1040 four children	30 September 1089 Épernay aged 76-77	Children of Odo II/I, divided their inheritance.
Stephen II[8]		c.1015 Second son of Odo II/ and Ermengarde of Auvergne	15 November 1037 – 1047	County of Champagne	Adele one child	1047 aged 31-32
Regency of Theobald III, Count of Blois (1047-1054)							In 1066, Champagne was reabsorbed in Blois. Odo inherited from marriage, later, the County of Aumale.
Odo II		1040 Son of Stephen II and Adele	1047 – 1066	County of Champagne	1115[9] aged 74-75	Adelaide of Normandy c.1060 one child
			1069 – 1115	County of Aumale
Champagne briefly annexed to Blois
Stephen Henry the Wise[10]		c.1045 Son of Theobald III and Gundrada	30 September 1089 – 19 May 1102	County of Blois	Adela of Normandy c.1080 Chartres eleven children	19 May 1102 Ramla aged 55-56	Children of Theobald III, divided their inheritance. Odo left no children, and he was succeeded by his brother Hugh.
Odo III		1062 First son of Theobald III and Adele of Valois	30 September 1089 – 1093	County of Champagne	Unmarried	1093[11] aged 30-31
Hugh		1074 Second son of Theobald III and Adele of Valois	1093 – 1125	County of Champagne	Constance of France 1094 one child Isabelle of Burgundy 1110 one child?	1125 aged 50-51	In 1125, after his death, his domains re-joined Blois.
Champagne briefly annexed to Blois
William the Simple		c.1085 First son of Stephen Henry and Adela of Normandy	19 May 1102 – 1107	County of Blois	Agnes of Sully 13 November 1104 five children	1150 aged 64-65	Deposed from the main patrimony of the family, inherited by marriage the barony of Sully-sur-Loire.
			1105 – 1150	Barony of Sully
Theobald IV/II the Great		1090 Second son of Stephen Henry and Adela of Normandy	1107 – 10 January 1152	County of Blois (with Champagne from 1125)	Matilda of Carinthia 1123 ten children	10 January 1152 aged 61-62	Succeeded his deposed elder brother in Blois. Reunited Blois and Champagne in 1125.
Stephen		c.1070 Son of Odo II and Adelaide of Normandy	1115 – 1127	County of Aumale	Hawise de Mortimer c.1100 four children	1127 aged 56-57	His father-in-law supported him in his claimancy for the throne of England.
Stephen		1092 Blois Third son of Stephen Henry and Adela of Normandy	1125 – 3 May 1152	County of Boulogne (jure uxoris)	Matilda I, Countess of Boulogne 1125 three children	25 October 1154 Dover aged 61-62	Count of Boulogne by right of his wife. Also King of England.
William the Fat		c.1100? Son of Stephen and Hawise de Mortimer	1127 – 20 August 1179	County of Aumale	Cicely FitzDuncan, Lady of Skipton c.1130 eleven children	20 August 1179 aged 78-79?	He was also made Earl of York. Left his domains in Aumale to his only daughter, Hawise.
Odo-Archambaud III[12]		1109 Son of Stephen Henry and Adela of Normandy	1150 – 1164	Barony of Sully	Mahaut de Beaugency three children	1164 aged 54-55
Henry I the Liberal		December 1127 First son of Theobald IV/II and Matilda of Carinthia	10 January 1152 – 16 March 1181	County of Champagne	Maria of France 1159 four children	16 March 1181 Troyes aged 53	Children of Theobald the Great, divided their inheritance.
Theobald V the Good		1130 Second son of Theobald IV/II and Matilda of Carinthia	10 January 1152 – 20 January 1191	County of Blois	Sybil of Chateaurenault no children Alix of France 1164 seven children	20 January 1191 Acre aged 60-61
Regency of Alix of France (1190-1191)
Stephen I		1133 Third son of Theobald IV/II and Matilda of Carinthia	10 January 1152 – 7 September 1191	County of Sancerre	Adélais de Donzy no children Béatriz three children Aénor one child	7 September 1191 Saint-Jean-d'Acre aged 57-58
Eustace IV[13]		1129 First son of Stephen and Matilda I of Boulogne	3 May 1152 – 17 August 1153	County of Boulogne	Constance of France 1140 no children	17 August 1153 Bury St Edmunds aged 23-24	Left no descendants. He was succeeded by his brother.
William I		1137 Second son of Stephen and Matilda I of Boulogne	17 August 1153 – 11 October 1159	County of Boulogne	Isabel de Warenne, Countess of Surrey 1148 no children	11 October 1159 Toulouse aged 21-22	Also Earl of Surrey, in the English peerage. Left no descendants. He was succeeded by his sister.
Maria I		1136 Daughter of Stephen and Matilda I of Boulogne	11 October 1159 – 1170	County of Boulogne	Matthew, Count of Boulogne 1160 (annulled 1170) two children	25 July 1182 Montreuil aged 45-46	Abducted by her future husband, who married her. She tried to divorce him, and finally did it in 1170, but he continued to rule jointly with her in Boulogne, and the children of the couple kept their inheritance rights.
Boulogne was inherited by the House of Alsace
Gilles II[12]		1133 Son of Odo-Archambaud III and Mahaut de Beaugency	1164 – 1193	Barony of Sully	Lucie de Charenton-sur-Cher three children	1193 aged 59-60
Hawise		c.1140 Daughter of William and Cicely FitzDuncan, Lady of Skipton	20 August 1179 – 1194	County of Aumale (de jure 1194-1214)	William de Mandeville, 3rd Earl of Essex c.1180 no children William de Forz c.1190 one child Baldwin of Bethune 1196 one child	11 March 1214 aged 73-74	Ruled together with her husbands. In 1194, Philip II of France took Aumale to royal domain, and gave it to Renaud I, Count of Dammartin (1224). In the English peerage, the claim to the county continued, through the Earldom of Albemarle (titular): 1194-1214: Hawise, with Baldwin of Bethune (1196-1212), jure uxoris 1214-1242: William de Forz I, son of Hawise 1242-1260: William de Forz II 1260-1269: Thomas de Forz 1269-1274: Aveline de Forz, sister of Thomas.
Aumale was annexed to the Kingdom of France
Henry II		29 July 1166 First son of Henry I and Maria of France	16 March 1181 – 10 September 1197	County of Champagne	Isabella I of Jerusalem 6 May 1192 two children	10 September 1197 Acre aged 31	Left Champagne in Crusade and established there as king consort of Jerusalem. Left the regency to his mother. As regent, Maria established the patched lands of Champagne as an unified territory. With the death of Henry II in Jerusalem, she passed the county to her youngest son, Theobald.
Regency of Maria of France (1190-1197)
Regency of Alix of France (1191-1197)
Louis I		1172[14] Son of Theobald V and Alix of France	20 January 1191 – 14 April 1205	County of Blois	Catherine, Countess of Clermont-en-Beauvaisis 1184 three children	14 April 1205 Adrianople aged 32-33
William I		1176 Son of Stephen I and Béatrix	7 September 1191 – 1217	County of Sancerre	Denise de Déols no children Marie de Charenton one child Eustachie de Courtenay two children	1217 Epirus aged 40-41
Archambaud IV[12]		c.1170 Son of Gilles II and Lucie de Charenton-sur-Cher	1193 – 23 August 1240	Barony of Sully	Alix de Brienne 1177 four children? Perseis d'Aschères no children Margaret no children	23 August 1240 Sully-sur-Loire aged 69-70
Theobald III		13 May 1179 Troyes Second son of Henry I and Maria of France	10 September 1197 – 24 May 1201	County of Champagne	Blanche of Navarre 1 July 1199 Chartres one child	24 May 1201 Troyes aged 22
Regency of Blanche of Navarre (1201-1222)[15]							Blanche was regent for her son, and protected him in the War of the Succession of Champagne, in which Theobald's cousins claimed the county:[16] 1216-1222: Philippa of Champagne, daughter of Henry II 1233: Alice of Champagne, daughter of Henry II Through Blanche, Theobald was also the heir and also through her, he would inherit the Kingdom of Navarre, from his uncle, Sancho VII of Navarre. Theobald was also an accomplished troubadour, which gave him his nickname.
Theobald IV the Troubadour (Theobald I as King of Navarre)		30 May 1201 Troyes Posthumous son of Theobald III and Blanche of Navarre	24 May 1201 – 8 July 1253	County of Champagne (with Kingdom of Navarre since 1234)	Gertrude of Dagsburg 1220 (annulled 1222) no children Agnes of Beaujeu 1222 one child Margaret of Bourbon 12 September 1232 six children	8 July 1253 Pamplona aged 52
Theobald VI the Younger		1190 Blois Son of Louis I and Catherine of Clermont-en-Beauvaisis	14 April 1205 – 22 April 1218	County of Blois	Mathilde of Alençon c.1210 no children Clemence de Roches no children	22 April 1218 La Ferté-Villeneuil aged 27-28	Left no heirs. He left the county to his aunts, Margaret and Isabella.
Louis I		1207 Son of William I and Marie de Charenton	1217 – 1267	County of Sancerre	Blanche de Courtenay three children Isabella of Mayenne no children	1267 aged 59-60
Margaret		c.1170 First daughter of Theobald V and Alix of France	22 April 1218 – 12 July 1230	County of Blois (at Blois proper)	Hugh III of Oisy, Viscount of Cambrai 1183 no children Otto I, Count of Burgundy 1192 two children Walter II of Avesnes two children	12 July 1230 aged 59-60	Aunts and heiresses of Theobald VI, inherited a partiitioned county. Both would leave their parts of the county to their respective daughters: Mary of Avesnes, daughter of Margaret, inherited Blois; Mahaut of Amboise, daughter of Isabella, inherited Chartres.
Isabella		c.1170 Second daughter of Theobald V and Alix of France	22 April 1218 – 25 November 1249	County of Blois (at Chartres)	Sulpice III, Lord of Amboise c.1200 two children Jean II de Montmirail no children	25 November 1249 aged 78-79
Blois and Chartres were inherited, respectively, by the House of Avesnes and the Amboise family
Henry I		c.1200 Son of Archambaud IV and Alix de Brienne?	23 August 1240 – 1249	Barony of Sully	Maria of Dampierre 1221 one child Aénor de Saint-Valéry 1237 no children	1249 aged 48-49
Henry II		1224 Son of Henry I and Maria of Dampierre	1249 – 1269	Barony of Sully	Péronelle de Joigny (d.1282) December 1251 three children	1269 Tagliacozzo aged 44-45
Regency of Margaret of Bourbon and James I of Aragon (1253-1256)							Left no children. He was succeeded by his brother.
Theobald V the Younger (Theobald II as King of Navarre)		7 December 1239 Provins First son of Theobald IV/I and Margaret of Bourbon	8 July 1253 – 4 December 1270	County of Champagne (with Kingdom of Navarre)	Isabella of France 6 April 1255 no children	4 December 1270 Trapani aged 30
John I		1235 First son of Louis I and Blanche de Courtenay	1267 – 1280	County of Sancerre	Marie de Vierzon (1259-1284) 1259 seven children	1280 aged 44-45	Children of Louis I, divided their inheritance.
Henry III		1254 Son of Henry II and Péronelle de Joigny	1269 – 1285	Barony of Sully	Marguerite de Bommiers (d.1323) 1282 two children	1285 Kingdom of Aragon aged 30-31
Henry III the Fat (Henry I as King of Navarre)		3 December 1249 Champagne Second son of Theobald IV/I and Margaret of Bourbon	4 December 1270 – 22 July 1274	County of Champagne (with Kingdom of Navarre)	Blanche of Artois February 1269 Melun two children	22 July 1274 Pamplona aged 24
Regency of Blanche of Artois (1274-1284)							Her marriage to the king of France determined the personal union of Navarre and Champagne to France.
Joanna I		14 January 1273 Bar-sur-Seine Daughter of Henry III/I and Blanche of Artois	22 July 1274 – 2 April 1305	County of Champagne (with Kingdom of Navarre)	Philip IV of France 16 August 1284 seven children	2 April 1305 Vincennes aged 32
Champagne and Navarre annexed to France
Stephen II		1252 First son of John I and Marie de Vierzon	1280 – 16 May 1306	County of Sancerre	Maria of La Marche 20 April 1289 no children	16 May 1306 aged 53-54	Left no children. The county passed to his brother.
Regency of Marguerite de Bommiers (1285-1296)							Also tresaurer and Grand Butler of France.
Henry IV		1282 Son of Henry III and Marguerite de Bommiers	1285 – 27 January 1336	Barony of Sully	Jeanne de Vendôme c.1305 ten children	27 January 1336 Kingdom of Navarre[17] aged 53-54
John II		c.1260 Second son of John I and Marie de Vierzon	16 May 1306 – 1327	County of Sancerre	Louise de Beaumez three children Isabelle de Mauvoisin-Rosny 1323 no children	1327 aged 66-67
Louis II		1305 Son of John II and Louise de Beaumez	1327 – 26 August 1346	County of Sancerre	Béatrix de Roucy (d. aft.1348) 8 July 1329 seven children	1327 aged 66-67
John		c.1305 Son of Henry IV and Jeanne de Vendôme	27 January 1336 – 1343	Barony of Sully	Margaret of Bourbon 6 June 1320 three children	1343 aged 37-38
Louis		c.1325 Son of John and Margaret of Bourbon	1343 – 1382	Barony of Sully	Isabelle de Craon 1357/8 one child	1382 aged 66-67
John III		1334 First son of Louis II and Béatrix de Roucy	26 August 1346 – March 1402	County of Sancerre	Marguerite de Marmande (1335-1371) two children Constance of Saluzzo (1345-1421) c.1375 no children	March 1402 aged 67-68	Children of Louis II, divided their inheritance. With the exception of Bommiers and Vauzon, the properties of the brothers returned to the main line by lack of descendants
Robert		c.1340 Second son of Louis II and Béatrix de Roucy	26 August 1346 – 1372	County of Sancerre (at Menetou-Salon)	Unmarried	1372 aged 31-32
Louis (III)		1341 Sancerre Third son of Louis II and Béatrix de Roucy	26 August 1346 – 6 February 1402	County of Sancerre (at Assigny)		6 February 1402 Paris aged 60-61
Isabella		1342 Daughter of Louis II and Béatrix de Roucy	26 August 1346 – 1375	County of Sancerre (at Bommiers and Vouzon)	Pierre de Graçay no children Guichard of Auvergne (d.1415) one child	1375 aged 32-33
Stephen (III)		c.1345 Fourth son of Louis II and Béatrix de Roucy	26 August 1346 – 1390	County of Sancerre (at Vailly-sur-Sauldre)	Unmarried	1390 Mahdia aged 44-45
With the exception of Bommiers and Vauzon, the remaining properties were re-annexed to Sancerre
Maria		1365 Daughter of Louis and Isabelle de Craon	1382 – 1409	Barony of Sully	Gui VI de La Trémoille 1383 five children Charles I, Lord of Albret 27 January 1401 four children	1409 Pau aged 43-44	After her death, the barony was inherited by the La Trémoille family.
Sully inherited by the La Trémoille family
Margaret		1355 Daughter of John II and Marguerite de Marmande	March 1402 – 1418	County of Sancerre	Gérard de Chabot-Retz (1344-1370) 1364 no children Béraud II, Dauphin of Auvergne 27 June 1374 Riom eight children Jean de Saligny Lourdin (1395-1446) no children Jacques de Montberon 1408 no children	1418 aged 62-63	After her death, the county went to the House of Bourbon.
Sancerre annexed to the property of the Capetian House of Bourbon

House Arms

Ancient Arms

Main Arms

House of Blois-Chartres

House of Blois-Champagne

House of Blois-Navarre

House of Sancerre

House of Sully

House of Sully (after 1346)

House of Champlitte

House of Lacarre

Other House Arms

House of Aumale

House of Champlitte-Pontailler

House Arms Variants

House of Champlitte

House of Blois-Navarre

Personal Arms

Stephen I of Sancerre

Stephen II of Sancerre

Louis I of Sancerre

John II of Sancerre

Odo-Archambaud III of Sully

John of Sully

(Variant) John of Sully

Louis I of Blois

(Attributed) Stephen I of Blois

(Attributed) Stephen II of Blois

Other Personal Arms

William I of Boulogne

Joan I of Navarre

Guy II of Pontailler

• Navarre monarchs family tree
• List of Navarrese monarchs from the House of Blois