The Marca Geronis or March of Gero was a vast super-march in the middle of the tenth century. It was probably created for Thietmar in the 920s and passed...

alternative name for the Marca Anconetana Marca Arduinica, or march of Turin, founded in 941 and named after Arduin Glaber Marca Geronis, a tenth-century march...

a frontier march of the Holy Roman Empire, created out of the vast Marca Geronis (Saxon Eastern March) in 965. Under the rule of the Wettin dynasty,...

Saxony-Anhalt, which he expanded into a vast territory named after him: the marca Geronis. During the mid-10th century, he was the leader of the Saxon Ostsiedlung...

Roman Empire. It was created by Emperor Otto I in the division of the marca Geronis in 965, following the death of Gero the Great. Its capital was Zeitz...

Polabian Slavs. It arose in 965 in the course of the partition of the vast Marca Geronis. Ruled by several Saxon margravial dynasties, among them the House of...

created out of the division of the vast Marca Geronis in 965. It initially comprised the northern third of the Marca (roughly corresponding to the modern...

Merseburg march was created by Emperor Otto I in the division of the vast Marca Geronis east of the Elbe and Saale rivers, following the death of Margrave Gero...

coast, stretching approximately from Stettin (Szczecin) to Schleswig; Marca Geronis (march of Gero), a precursor of the Saxon Eastern March, later divided...

the Billung March to the north and the Marca Geronis to the south. After Gero's death in 965, the Marca Geronis was divided into the Northern March, the...

Great Slav Rising in 983, he temporarily reunited all of the southern marca Geronis under his command. His march included the territory of the Chutizi and...

had married Hidda (d. 970), a sister of Gero, margrave of the vast marca Geronis in the lands settled by Polabian Slavs. From 945 he also ruled over...

colonisation." This can be contrasted with the military occupation of the Marca Geronis, the great march of Gero to the south of the Billungs. The Billung March...

established by King Otto I of Germany in 948, in the territory of the Marca Geronis (Saxon Eastern March) east of the Elbe river. The diocese, over which...

modern Prenzlau). In 954, Margrave Gero of the Saxon Eastern March (the marca Geronis), aided by Holy Roman Emperor Otto I's son-in-law, Conrad of Lorraine...

the Fowler in his 928/29 Slavic campaign and incorporated into the Marca Geronis. Henry's successor Otto I in 948 established the Bishopric of Brandenburg...

the Baltic Sea, stretching approximately from Groswin to Schleswig Marca Geronis (march of Gero), a precursor of the Saxon Eastern March, later divided...

border with the lands of the Polabian Slavs incorporated into the Saxon Marca Geronis. The town itself was first mentioned in a 1275 deed, governed by a succession...

Slavic tribes up to the Oder river and his son Otto I established the marca Geronis on their territory, with the government first conferred to the Saxon...

the Germans. In the 10th century the march formed part of the vast marca Geronis from 937 until 965. During this period, the Sorbs were reduced to serfdom...

by the Saxon forces of Margrave Gero and incorporated into his vast Marca Geronis, while the lands east of the Oder were held by Pomeranian tribes under...

Schauenburg); also ruled a large part of Denmark 1292 – 1340 Gero Ruler of Marca Geronis, a very large march in Europe 900 – 965 Godfrey I of Louvain Count of...

the Saale and Bóbr rivers, which about 965 was severed from the vast Marca Geronis, conquered by the Saxon count Gero in the course of his campaigns against...

Schwabengau from 937. He also ruled in the neighbouring Gau Serimunt of the Marca Geronis from 945. Like Margrave Gero the Great (c. 900 – 965), he was probably...

962/63 he first met with the Saxon forces of Margrave Gero, ruler of the Marca Geronis between the Saale and Bóbr rivers established in 937 by King Otto I...

was incorporated into the Gau Ciervisti of the Saxon Eastern March (Marca Geronis) about 937 in the course of the German Ostsiedlung. It is not clear...

Great created the Billung March, governed by Hermann Billung, and the Marca Geronis. 937 11 July Rudolph II of Burgundy, the king of Burgundy, died. Rudolph...

recurrent tribute to Emperor Otto. Upon Gero's death in 965, his vast Marca Geronis was divided into several smaller marches, while the power in the area...

following the death of Margrave Gero the Great in 965, after which the Marca Geronis was split in several smaller parts. The establishment of the march was...

tribute to Emperor Otto I (the Great). He expands his territory, the Marca Geronis (March of Gero), to the mouth of the Oder River. Sviatoslav I, Grand...