Was Vlad the Impaler imprisoned in Turkey?

Answer 1

In 1436, His father Dracul ascended the throne of Wallachia. He was ousted in 1442 by rival factions in league with Hungary, but secured Ottoman support for his return agreeing to pay tribute to the Sultan and also send his two younger sons, Vlad and Radu the Handsome, to the Ottoman court, to serve as hostages of his loyalty.

In 1444, at the age of thirteen, young Vlad and his brother Radu were sent to Adrianople as hostages, to appease the Sultan. He remained there until 1448, at which time he was released by the Turks, who supported him as their candidate for the Wallachian throne. Vlad's younger brother apparently chose to remain in Turkey, where he had grown up. (Radu is later supported by the Turks as a candidate for the Wallachian throne, in opposition to his own brother, Vlad.)

In Adrianople, Vlad was locked up in prison and often whipped and beaten because of his verbal abuse towards his captors and his stubborn behavior, while his younger brother Radu the Handsome was much easier to control. Radu converted to Islam entered the service of Sultan Murad II's son, Mehmed II (later known as the Conqueror), and was allowed into the Ottoman royal court.