The Serbian Uprising of 1149 was instigated by the prince of Norman Sicily, Roger II, as a means to divert the resources of the Byzantine emperor Manuel I Komnenos during his campaign to reconquer the island of Corfu, which had been taken by the Normans the previous year. By 1154, however, Uroš had been ousted from power by his brother Desa, who was favored by the Kingdom of Hungary to rule Serbia. When Manuel arrived with his armies, both Uroš and Desa swore oaths of allegiance to him, and Manuel placed Uroš back on the throne as his vassal, ending the conflict.