Radu
From Tardis Wiki, the free Doctor Who reference
Radu, also known as Radu the Handsome, was the son of Vlad the Great (AUDIO: Son of the Dragon) and the younger brother of Vlad III and Mircea. (PROSE: Possum Kingdom) Like his brother Vlad he was raised in Adrianople as a hostage by the Sultan. However, unlike his brother he converted to Islam. (PROSE: The Book of the War)
In 1462, Radu saved the Fifth Doctor, Peri Brown and Erimem from being killed by Dracula's soldiers. (AUDIO: Son of the Dragon)
Bram Stoker's Dracula was a descendant of Radu. (PROSE: Possum Kingdom)
