Alexius Explained

Alexius is the Latinized form of the given name Alexios (el|Αλέξιος, polytonic Greek, Ancient (to 1453);: Ἀλέξιος, "defender", cf. Alexander), especially common in the Byzantine Empire. The female form is Alexia (el|Αλεξία) and its variants such as Alessia (the masculine form of which is Alessio) in Italian.

The name belongs to the most ancient attested Greek names (a-re-ke-se-u in the Linear B tablets KN Df 1229 and MY Fu 718).

Rulers

• Alexios I Komnenos (1048–1118), Byzantine emperor
• Alexios II Komnenos (1167–1183), Byzantine emperor
• Alexios III, Byzantine emperor
• Alexios IV, 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 (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, Byzantine statesman
• Alexios Aspietes, Byzantine governor
• Alexios Branas, Byzantine general
• Alexios Halebian, American tennis player
• Alexius Meinong, Austrian philosopher
• Alexios Mosele (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, Byzantine Catepan of Italy
• Alexios (Assassin's Creed), a fictional character in Assassin's Creed: Odyssey

Alexius in other languages

• English – Alexis, Aleck
• German – Alexius, Alexis
• Greek – Αλέξιος [''Alexios''], Αλέξης [''Alexis'']
• French – Alexis
• Italian – Alessio
• Spanish – Alejo, Alexis
• Portuguese – Aleixo
• Latvian – Alexius, Aleksis, Aleksejs
• Polish – Aleksy
• Czech – Aleš, Alexej
• Slovak – Aleš
• Estonian – Aleksei
• Bulgarian – Алексей [Aleksej]
• Serbian – Aleksa
• Finnish – Aleksi, Aleksis
• Macedonian – Aleksio
• Georgian – ალექსი, [''Aleksi'' ]
• Belarusian – Аляксей [Aleksiej]
• Russian – Алексей [''Alexei'', ''Alexey'', ''Aleksei'', ''Aleksey], Алексий [''Alexiy], Алёша [''Alyosha], Лёша [''Lyosha'']
• Ukrainan – Олексій [''Oleksii'', ''Oleksiy''], Олекса [''Oleksa'']
• Hungarian – Elek