Petar I may refer to: *

Petar I of Bulgaria Peter I (; ; died 30 January 970) was the emperor (tsar) of Bulgaria from 27 May 927 to 969. Facing Bogomilism and rebellions by his brothers and also by Časlav Klonimirović early on in his reign, Peter secured more success later in life; he ...

(r. 927-969), Emperor (Tsar) of Bulgaria *

Petar I Petrović-Njegoš Petar I Petrović-Njegoš (; 1748 – 31 October 1830) was the Prince-Bishop of Montenegro from 1784 to 1830 and Exarch (legate) of the Serbian Orthodox Church in Montenegro. He was the most popular spiritual and military leader from the Petro ...

(1747–1830), Montenegrin ruler, metropolitan and saint *

Peter I of Serbia Peter I (; – 16 August 1921) was King of Serbia from 15 June 1903 to 1 December 1918. On 1 December 1918, he became King of the Serbs, Croats and Slovenes, and he held that title until his death three years later. Since he was the king ...

(1844–1921), Serbian king

See also