Radu cel Frumos

Radu III of Wallachia, commonly called Radu the Handsome (; ; January 1475), was the younger brother of Vlad III and prince of the principality of Wallachia. They were both sons of Vlad II Dracul and his wife, Princess Cneajna of Moldavia. In addition to Vlad III, Radu also had two older siblings, Mircea II and Vlad Călugărul, both of whom would also briefly rule Wallachia. Life with the Ottomans In 1436, Vlad II Dracul ascended to the throne of Wallachia. He was ousted in 1442 by rival factions in league with Hungary, but secured Ottoman support for his return by agreeing to pay tribute to the Sultan and also send his two legitimate sons, Vlad III and Radu, to the Ottoman court, to serve as hostages of his loyalty. Vlad and Radu were later educated in logic, the Quran and the Turkish and Persian language and literature. The boys' father, Vlad Dracul, with the support of the Ottomans, returned to Wallachia and took back his throne from Basarab II. While Vlad was eventually released to take his place on the Wallachian throne in 1448 after his father was killed by John Hunyadi, Radu converted to Islam and was allowed into the Ottoman imperial court. Radu later participated alongside Mehmet II, now Sultan, in the Ottoman siege which eventually led to the Fall of Constantinople in 1453. Radu was allowed to live in the newly built Topkapı Palace in Istanbul. According to the Serbian Janissary Konstantin Mihailović, Radu was a commander of the Janissary; in the campaign against his brother Vlad III, Radu was at the head of 4000 horsemen.