Siege of Lastovo
After the death of Croatian King Stjepan Držislav in 997, an ally of the Byzantine Empire, who ruled in the last three decades of the 10th century and was recognized by Byzantine emperor as the king of Croatia and Dalmatia, his eldest son and successor Svetoslav Suronja continued the pro-Byzantine policy, but his younger sons Krešimir and Gojslav started to organize a rebellion.With the aid of Bulgarian emperor Samuil, Krešimir and Gojslav managed to remove Svetoslav Suronja from the Croatian throne in 1000 and forced him to seek refuge in Venice.At the same time, Doge Pietro II Orseolo prepared Venetian forces to take control over Dalmatian cities that were part of the Byzantine Empire, Croatia, and Narentines.As the fleet reached Lastovo, the residents of the town did not welcome it, but waited behind the city walls, ready to resist.The doge spared their lives, but gave the order to his soldiers to destroy the defensive walls and to burn down the town.