High Quality Content by WIKIPEDIA articles! Radu cel Frumos (or Radu the Handsome); he was also known by his Turkish name Radu Bey, Persian nickname: Raad (thunderbolt), (1435 1475). He was the younger brother of Vlad epe and voivode (prince) of the principality of Wallachia, of the four brothers he converted to Islam and entered Ottoman service. They were both sons of Vlad II Dracul (Dracul : the dragon or devil) and his wife, Princess Cneajna of Moldavia. In addition to Vlad epe , Radu also had two older half-brothers, Mircea II and Vlad C lug rul, both of whom would also briefly rule Wallachia.