Count Dracula was a vampire who lived on Earth until at least the 20th century, according to historical records. The exploits of Dracula were recorded in a fictionalized work of literature, the novel Dracula by Human author Bram Stoker, first published in the year 1897. Both the book and character became the basis and inspiration for numerous other books and movies for years to follow.
Captain James T. Kirk recalled reading Dracula as a young boy, and being particularly frightened by Count Dracula. In 2269, when Kirk met the vampire-like Ambassador Damu of Chiroptera, he recalled some of that fear. (TOS novel: Death's Angel)
When confronted with an image of Dracula, Commander Spock of the USS Enterprise recalled the storytelling legend centered around the Count, including an anecdote of Count Dracula having been slain in the 20th century by Quincy Harker. (TOS comic: "The Haunting of Thallus!")