Vukan was succeeded by his nephew Uroš I, son of his brother Marko, who was handed over to the Byzantines in 1094. During the period of a new Byzantine expansion and growth, known as the century-long Komnenos Renaissance, under the historically unknown circumstances the Byzantines took the Serbian capital Ras and stationed a military crew there. They restored a vassal rule over Serbia, establishing a tough grip over the Serbs. A large amount of population was resettled by the Byzantine emperor John II Komnenos to Nicomedia, in Asia Minor. After the Byzantine–Hungarian War of 1127–1129 broke out, the Serbs rebelled against the Byzantines. Though ultimately defeated, the Serbs managed to retake and raze the town of Ras. John II Komnenos punished the Ras commander who lost the city to the Serbs by forcing him to wear female dress and ride through the streets of Constantinople on a donkey. In the next period, whenever Hungarian army would appear on the Danube to engage the Byzantines in various skirmishes, the Serbs would rebel.