Greece and the Balkans 1215 CE
The rivalry between the Byzantine empire and the Bulgars has continued, only ending with the sack of Constantinople by the Fourth Crusade 1204.
What is happening in Greece and the Balkans in 1215CE
The struggle between the Byzantines and the Bulgars continued. However, the Byzantines, under their emperor Basil II, won a crushing victory at the battle of Belasitsa (1014), which led to the Byzantine conquest of Bulgaria and its absorption into their empire. In 1185 the Bulgars won their independence again. Then in 1204, the Byzantines suffered a catastrophe as the Christian soldiers of the Fourth Crusade sacked the Byzantine capital, Constantinople, and installed one of their leaders there as emperor.
The Slav states of Croatia and Serbia have had varying fortunes. Croatia has become politically absorbed into Hungary, though the Croats retain their distinctive national laws and institutions, while Serbia has expanded greatly and is a strong, well-organized militaristic state.