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List of rulers who converted to Christianity 
Summary
This is a list of rulers who converted to Christianity. The conversion of monarchs was often an important step in the process of Christianization.
1st century edit
4th century edit
King Ezana after converting to christianity. - Tiridates III of Armenia, King of Armenia, in 301
- Ezana of Axum, King of Aksum, 320
- Constantine I, Roman emperor, in 337
- Mirian III of Iberia, King of Iberia, c. 337
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Baptism of Tiridates III -
-
Mirian III
5th century edit
- Óengus mac Nad Froích, King of Munster
- Clovis I, King of the Franks, circa 496-506
- Rechiar, King of the Suebi
-
The baptism of Clovis I by Saint Remigius -
The baptism of Óengus mac Nad Froích by Saint Patrick
6th century edit
- Constantine of Dumnonia
- Saint Constantine of Strathclyde
- Rædwald of East Anglia
- Reccared I, king of visigoths, and Hermenegild, sub-king in Baetica, converted from Arianism to the Nicene faith.
7th century edit
9th century edit
- Boris I of Bulgaria (864)
- Guthrum (878)
- Borivoj I, Duke of Bohemia (883)
- Rorik of Dorestad
- Harald Klak
-
Baptism of Boris I -
Baptism of Borivoj I by Saint Methodius
10th century edit
- Mieszko I of Poland (966)
- Géza, Grand Prince of the Hungarians (970s)
- Vladimir I of Kiev (980s)
- Harald Bluetooth of Denmark and Norway
- Eric the Victorious
- Haakon the Good
-
Baptism of Mieszko -
The Baptism of Saint Prince Vladimir, by Viktor Vasnetsov (1890) -
Harald being baptized by Poppo the monk, probably c. 960
11th century edit
- Olof Skötkonung, King of Sweden (1008)
14th century edit
- Jogaila, Grand Duke of Lithuania and King of Poland (1386)
16th century edit
- Nzinga of Ndongo and Matamba
- Afonso I of Kongo
- Humabon, Rajah of Cebu (1521)
- Bunao Lakan Dula, Lakan of Tondo (c. 1571)
- Rajah Matanda of Maynila (1572)
- Ōtomo Sōrin (although not a direct royalty, Japanese daimyo were de facto independent rulers of their territories)
- Arima Harunobu
- Ōmura Sumitada