Boris I (also Bogoris), venerated as Saint Boris I (Mihail) the Baptizer (Church Slavonic: Борисъ / Борисъ-Михаилъ Bulgarian: Борис I / Борис-Михаил;...

Boris III (Bulgarian: Борѝс III ; Boris Treti; 30 January [O.S. 18 January] 1894 – 28 August 1943), originally Boris Klemens Robert Maria Pius Ludwig Stanislaus...

971). Boris II was the eldest surviving son of Emperor Peter I of Bulgaria and Maria (renamed Eirene) Lekapena, a granddaughter of Emperor Romanos I Lekapenos...

Ferdinand I (Ferdinand Maximilian Karl Leopold Maria; 26 February 1861 – 10 September 1948) was Prince of Bulgaria from 1887 to 1908 and Tsar of Bulgaria from...

Boris, Prince of Tarnovo, Duke in Saxony (born 12 October 1997), known by his Spanish civilian name Boris de Sajonia-Coburgo-Gotha y Ungría, is the elder...

864 or 865, as the third son of Knyaz Boris I of Krum's dynasty. As Boris was the ruler who Christianized Bulgaria in 865, Simeon was a Christian all his...

Presian, sometimes enumerated as Presian I (Bulgarian: Пресиян, Персиян, Пресиан) was the khan of Bulgaria in 836–852. He ruled during an extensive expansion...

family tree of the Bulgarian royal family, including all descendants of Tsar Ferdinand I. Tsar Ferdinand I (1861–1948) Tsar Boris III (1894–1943) Tsar...

Simeon II from 1943 until 1946. He was six years old when his father Boris III of Bulgaria died in 1943. Royal power was exercised on his behalf by a regency...

earlier form of the title knyaz. When Bulgaria converted to Christianity in the ninth century, the ruler Boris I (852–889) was using the title knyaz (prince)...