Leo I may refer to: Pope Leo I (400–461), also known as Pope Saint Leo the Great Leo I (emperor), Roman emperor from 457 to 474 Leo I, Prince of Armenia...

Pope Leo I (c. 400 – 10 November 461), also known as Leo the Great, was Bishop of Rome from 29 September 440 until his death. Leo was a Roman aristocrat...

and Co. LEO I ran its first business application in 1951. In 1954 Lyons formed LEO Computers Ltd to market LEO I and its successors LEO II and LEO III to...

Leo I (Greek: Λέων, translit. Leōn; c. 401 – 18 January 474), also known as "the Thracian" (Latin: Thrax; Greek: ο Θραξ), was Roman emperor of the East...

Leo I is a dwarf spheroidal galaxy in the constellation Leo. At about 820,000 light-years distant, it is a member of the Local Group of galaxies and is...

Leo I of Galicia (Ukrainian: Лев Дани́лович, romanized: Lev Danýlovych; c. 1228 – c. 1301) was King of Ruthenia, Prince of Belz (1245–1264), Peremyshl...

with the ruling name Leo Leo I, Prince of Armenia (died 1140) Leo Esaki (born 1925), Japanese physicist and Nobel laureate Leo Kadanoff (1937–2015),...

Leo I (r. 457–474). Leo II was made co-emperor with his grandfather Leo I on 17 November 473, and became sole emperor on 18 January 474 after Leo I died...

Leo I (Armenian: Լևոն Ա), also Levon I or Leon I, (unknown[citation needed] – Constantinople, February 14, 1140[citation needed]) was the fifth lord of...

Leo II (Armenian: Լեւոն Ա Մեծագործ, romanized: Levon I. Metsagorts; 1150 – 2 May 1219) was the tenth lord of Armenian Cilicia, ruling from 1187 to 1219...

The M96 Group (also known as the Leo I Group) is a group of galaxies in the constellation Leo. This group contains between 8 and 24 galaxies, including...

Leo I of Armenia may refer to: Leo I, Prince of Armenia, who ruled 1129/1130–1137 Leo I, King of Armenia, who ruled 1198/1199–1219 This disambiguation...

Roman Empire was ruled by the House of Leo from AD 457, the accession of Leo I, to 518, the death of Anastasius I. The rule of the Leonid dynasty coincided...

Israel Leo Glasser (born April 6, 1924), also known as I. Leo Glasser or Leo Glasser, is a senior United States district judge of the United States District...

high civilian officers Gennadius Avienus and Trigetius, as well as Pope Leo I, who met Attila at Mincio in the vicinity of Mantua and obtained from him...

empress Eudokia Ingerina, Leo was either the illegitimate son of Emperor Michael III or the second son of Michael's successor, Basil I the Macedonian. Eudokia...

that year were supposed to be Leo I and Majorian. This inscription, instead, records only the name of Eastern Emperor Leo I, showing that Majorian was not...

Ingerina, Basil I had the following children: Leo VI, who succeeded as Byzantine emperor and may actually have been a son of Michael III. Stephen I, Patriarch...

The Meeting of Leo I and Attila is a fresco by the Italian Renaissance artist Raphael. It was painted from 1513 to 1514 as part of Raphael's commission...

Leo III the Isaurian (Greek: Λέων ὁ Ἴσαυρος, romanized: Leōn ho Isauros; Latin: Leo Isaurus; c. 685 – 18 June 741), also known as the Syrian, was the...

Leo I, sometimes called the Usurper, was the regent of the Duchy of Gaeta from 1017 until 1024. He was a younger son of Duke John III and Duchess Emilia...

The Kraków campaign of Leo I of Galicia was a campaign involving Kingdom of Galicia–Volhynia led by Leo I of Galicia against the Kingdom of Poland led...

Leo IV the Khazar (Greek: Λέων ὁ Χάζαρος, Leōn ho Khazaros; 25 January 750 – 8 September 780) was Byzantine emperor from 775 to 780 AD. He was born to...

passed over Marcian's son-in-law, Anthemius, and had a military commander, Leo I, elected as emperor. Marcian was born in c. 392, in either Thrace or Illyria...

had a son, Leo. On the death of Leo I in 474, Zeno's seven-year-old son took the throne as Leo II, with Zeno made co-emperor shortly after. Leo II died of...

Sculptor Dwarf Galaxy, Fornax Dwarf Galaxy, Leo I (a dwarf galaxy), Leo II (a dwarf galaxy), Ursa Major I Dwarf Galaxy and Ursa Major II Dwarf Galaxy...

"red boot", or from an Armenian word for "short stature", as explained by Leo the Deacon. A more favorable explanation is offered by the medieval Armenian...

of Leo I Ruben II, prince 1169–1170, son of Theodore II Mleh, prince 1170–1175, son of Leo I Ruben III, prince 1175–1186, grandson of Leo I Leo I "the...

Pope Leo was the name of thirteen Roman Catholic Popes: Pope Leo I (the Great) (440–461) Pope Leo II (682–683) Pope Leo III (795–816) Pope Leo IV (847–855)...

descent). Leo served in 803 under the rebel general Bardanes Tourkos, whom he deserted in favor of Emperor Nikephoros I. The Emperor rewarded Leo with two...