The Despotate of Morea refused to pay its annual tribute and revolted. In response Mehmed led a campaign into Morea. Mehmed entered the Morea in May 1460. The capital Mistra fell exactly seven years after Constantinople, on 29 May 1460. Demetrios ended up a prisoner of the Ottomans and his younger brother Thomas fled. By the end of the summer, the Ottomans had achieved the submission of virtually all cities possessed by the Greeks. The inhabitants were defeated and their territories were annexed into the Ottoman Empire.