known as Simeon the Great
born 864/865
died May 27, 927
Tsar of the first Bulgarian empire (925–927).
The son of Boris I , he succeeded his father in 893 after the short intervening reign (889–893) of his dissolute elder brother, Vladimir. Hoping to gain the imperial throne, he fought five wars with the Byzantine Empire between 894 and 923. He adopted the title "Tsar of All the Bulgarians" in 925. He extended his power over southern Macedonia, southern Albania, and Serbia but probably lost Bulgaria's dominion north of the Danube.