Charles II
From Tardis Wiki, the free Doctor Who reference
Charles II was the King of England from 1660 to 1685.
Biography
Charles became the king in 1660 after parliament invited him to take the throne of England. (PDA: The Roundheads)
Soon after his restoration, Charles met Nathaniel Silver. (FP: Newtons Sleep)
The Sixth Doctor claimed to have met Charles II. (PDA: Players)