Christopher Marlowe
From Tardis Wiki, the free Doctor Who reference
Christopher "Kit" Marlowe (baptised 26 February 1564―30 May 1593), was an English poet. He was the greatest Elizabethan tragedian writer before William Shakespeare. The Doctor makes passing reference to Marlowe being either gay or bisexual, and that the Doctor would be willing to make a pass at him if the situation called for it.