Ivaylo, also spelled Ivailo, was a rebel leader who ruled briefly as tsar of Bulgaria. In 1277, he led a peasant uprising and forced the Bulgarian nobility to accept him as emperor. He reigned as empe

Silistra is a town in Northeastern Bulgaria. The town lies on the southern bank of the lower Danube river, and is also the part of the Romanian border where it stops following the Danube. Silistra is