Ivan Asen II, also known as John Asen II (Bulgarian: Иван Асен II, [iˈvan ɐˈsɛn ˈftɔri]; 1190s – May/June 1241), was Emperor (Tsar) of Bulgaria from 1218...

Ivan Asen I, also known as Asen I or John Asen I (Bulgarian: Иван Асен I; died in 1196), was emperor or tsar of Bulgaria from 1187/1188 to 1196 as co-ruler...

especially the ethnic background of the three Asen brothers (Teodor I Peter IV (Romanian: Teodor I Petru IV), Ivan Asen I (Romanian: Ioan Asan I) and Kaloyan...

of Bulgaria 1279–1280. Ivan Asen III was the son of Mitso Asen of Bulgaria and Maria of Bulgaria, a daughter of Ivan Asen II of Bulgaria and Irene of Thessalonica...

emperor Robert of Courtenay in 1228, Ivan Asen II was considered the most probable choice for regent of Baldwin II. Theodore thought that Bulgaria was...

1256 or 1257. He was the son of Ivan Asen II and Irene Komnene Doukaina. He succeeded his half-brother, Kaliman I Asen. His mother or other relative must...

Bulgarian Empire, it reached the peak of its power under Tsars Kaloyan and Ivan Asen II before gradually being conquered by the Ottomans in the early 15th century...

emperor than the Holy Roman emperor. The fifth ruler of the second empire, Ivan Asen II (1218–1241) after 1230 extended his original title "Emperor of the Bulgarians"...

unknown. Kaliman Asen II was the son of sebastokrator Alexander, who was the younger brother of Ivan Asen II of Bulgaria. Kaliman Asen II's mother is unknown...

princess. She was the third wife of tsar Ivan Asen II of Bulgaria. She was the mother of tsar Michael Asen I of Bulgaria. Irene was daughter of Theodore...