Chaka briefly reigned as tsar of Bulgaria, from 1299 to 1300. He was the son of the Mongol leader Nogai Khan by a wife named Alaka. Sometime after 1285 Chaka married a daughter of George Terter I of Bulgaria, named Elena. In the late 1290s, Chaka supported his father Nogai in a war against the legitimate khan of the Golden Horde, Toqta. Toqta defeated and killed Nogai in 1299.
- Occupation
- politician
- Position held
- emperor, King of Bulgaria
- Born
- 1250
- Died
- February 17, 1300, 1300
