David's surrender about 15 August 1461 marks the end of the Empire of Trebizond and of the Byzantine imperial tradition. The deposed emperor, his family, and courtiers were shipped off to Constantinople. The population was divided into three groups, some being allocated to the service of the Sultan and his officers, others added to the population of Constantinople, and the remainder were allowed to inhabit the outskirts of Trebizond itself. Some local youths were duly conscripted into the Janissaries, while the Ottoman admiral was left to garrison the city.