If you guessed Dracula you would be correct. Bram Stoker wrote the novel Dracula very loosely based on Vlad Tepes who was a Prince of Wallachia and was born in Transylvania. Though he took some of the other parts from the Countess of Transylvania.
These two never saw or lived in England, but they influenced the English literary culture.
What about others who lived and are still alive?