Earl

Earl was an aristocratic title.

Before becoming the outlaw Robin Hood, Robert was Earl of Loxley. (TV: Robot of Sherwood)

In an alternate timeline, Alice Coltrane claimed to have seen the ghost of Earl Mountbatten at the Boat Show. (TV: Turn Left)

Behind the scenes
In the real world, Earl is the British equivalent of the title Count used in many other European countries, and its female form is Countess.