Leo I (emperor)

Leo I (Greek: Λέων, translit. Léōn; c. 401 – 18 January 474) was Eastern Roman emperor from 457 to 474. He was a native of Dacia Aureliana near historic Thrace. Sometimes, he is called Leo the Great (Greek: ὁ Μέγας, translit. ho Mégas), probably to distinguish him from his young grandson and co-augustus Leo II (Greek: ὁ Μικρός, translit. ho Mikrós, lit. "the Small").[2]

Leo I
Portrait of Leo at the Louvre
Roman emperor of the East
Reign7 February 457 – 18 January 474
SuccessorLeo II
Majorian (457–461)
Libius Severus (461–465)
Anthemius (467–472)
Olybrius (472)
Glycerius (473–474)
Bornc. 401
Dacia Aureliana
Died18 January 474 (aged 73)[1]
IssueAriadne, Leontia, unnamed son

Leo the Great
16th cent. Russian Icon depecting St. Leo's enshrinement of the Robe of the Theotokos in Sts. Peter and Mark church, Blachernae
Holy and Right-Believing Emperor of the Romans
Venerated inEastern Orthodoxy
Feast20 January
AttributesImperial attire

Ruling the Eastern Empire for nearly 20 years, Leo proved to be a capable ruler. He oversaw many ambitious political and military plans, aimed mostly at aiding the faltering Western Roman Empire and recovering its former territories. He is notable for being the first Eastern Emperor to legislate in Koine Greek rather than Late Latin.[3] He is commemorated as a saint in the Orthodox Church, with his feast day on 20 January.[4][5]