Alexius is the Latinized form of the given name Alexios ( el, Αλέξιος, polytonic , "defender", cf. Alexander), especially common in the later

Byzantine Empire The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...

. The female form is Alexia ( el, Αλεξία) and its variants such as

Alessia Alessia is an Italian given name, the Feminine gender, feminine form of the male given name Alessio (disambiguation), Alessio, the Italian form of Alexius. It is a popular name for females in Italy and was the second most popular name for Ita ...

(the masculine form of which is

Alessio Alessio is a mostly Italian male name, Italian form of Alexius. Individuals with the given name Alessio * Alessio Ascalesi (1872–1952), Italian cardinal *Alessio Boni (born 1966), Italian actor * Alessio Cerci (born 1987), Italian footballer ...

) in Italian. The name belongs to the most ancient attested Greek names (a-re-ke-se-u in the

Linear B Linear B was a syllabic script used for writing in Mycenaean Greek, the earliest attested form of Greek. The script predates the Greek alphabet by several centuries. The oldest Mycenaean writing dates to about 1400 BC. It is descended from ...

tablets KN Df 1229 and MY Fu 718).

Rulers

Alexios I Komnenos Alexios I Komnenos ( grc-gre, Ἀλέξιος Κομνηνός, 1057 – 15 August 1118; Latinized Alexius I Comnenus) was Byzantine emperor from 1081 to 1118. Although he was not the first emperor of the Komnenian dynasty, it was during ...

(1048–1118), Byzantine emperor *

Alexios II Komnenos Alexios II Komnenos ( gkm, Αλέξιος Β' Κομνηνός; 14 September 1169, p. 383September 1183), Latinized Alexius II Comnenus, was Byzantine emperor from 1180 to 1183. He ascended to the throne as a minor. For the duration of his shor ...

(1167–1183), Byzantine emperor * Alexios III, Byzantine emperor *

Alexios IV Alexios IV Angelos or Alexius IV Angelus ( el, Ἀλέξιος Ἄγγελος) (c. 1182 – February 1204) was Byzantine Emperor from August 1203 to January 1204. He was the son of Emperor Isaac II Angelos and his first wife, an unknown Palaio ...

, Byzantine emperor * Alexios V Doukas, Byzantine emperor * Alexios I of Trebizond, Emperor of Trebizond * Alexios II of Trebizond, Emperor of Trebizond * Alexios III of Trebizond, Emperor of Trebizond * Alexios IV of Trebizond, Emperor of Trebizond * Alexios V of Trebizond, Emperor of Trebizond * Alexius Mikhailovich (1629–1676), Tsar of Russia * Alexius Petrovich (1690–1718), Russian tsarevich

Religious figures

* Alexius, Metropolitan of Moscow (1354–1378) * Patriarch Alexius I of Constantinople (1025–1043) *

Alexius Alexius is the Latinized form of the given name Alexios ( el, Αλέξιος, polytonic , "defender", cf. Alexander), especially common in the later Byzantine Empire. The female form is Alexia ( el, Αλεξία) and its variants such as Alessia ...

(c. 1425–1488), Russian archpriest who converted to Judaism * Patriarch Alexius I of Moscow and All Russia (r. 1945–1970) * Patriarch Alexius II of Moscow and All Russia (r. 1990–2008) * Alexius of Nicaea, metropolitan bishop * Saint Alexius of Rome, fifth-century eastern saint * Alexius, a monk and saint of Kiev - see Abraham and Onesimus of Kiev

Other

Alexios Apokaukos Alexios Apokaukos ( el, ; died 11 June 1345), also Latinized as Alexius Apocaucus, was a leading Byzantine statesman and high-ranking military officer ('' megas doux'') during the reigns of emperors Andronikos III Palaiologos (r. 1328–1341) ...

, Byzantine statesman * Alexios Aspietes, Byzantine governor * Alexios Branas, Byzantine general * Alexios Halebian, American tennis player * Alexius Meinong, Austrian philosopher *

Alexios Mosele (Caesar) Alexios Mosele ( el, ) or Musele/Mousele (Μουσελέ) was a Byzantine aristocrat and general, chosen by Emperor Theophilos (r. 829–842) for a time as his heir, betrothed to his daughter Maria and raised to the supreme dignity of ''Caesar''. ...

, Byzantine heir-apparent * Alexios Palaiologos (despot), Byzantine heir-apparent * Alexios Philanthropenos, Byzantine general * Alexios Raoul (protovestiarios), Byzantine general * Alexios Strategopoulos, Byzantine general *

Alexios Xiphias Alexios Xiphias ( gr, Ἀλέξιος Ξιφίας, la, Alexius Xifea) was a Byzantine ''protospatharios'' and catepan of Italy from 1006 to 1007, following the long term of office of Gregory Tarchaneiotes. In March 1007, he promulgated a diploma ...

, Byzantine Catepan of Italy *

Alexios (Assassin's Creed) Alexios ( el, Αλέξιος) and Kassandra ( el, Κασσάνδρα) are two interconnected fictional characters in Ubisoft's ''Assassin's Creed'' video game franchise, first appearing as the player characters of the 2018 video game ''Assassin's ...

, a fictional character in ''Assassin's Creed: Odyssey'' {{given name Given names of Greek language origin Greek masculine given names Given names