The title of Earl of Cornwall was created several times in the Peerage of England before 1337, when it was superseded by the title Duke of Cornwall, which became attached to heirs-apparent to the throne.
^Also Lord Warden of the Stannary of Cornwall. An illegitimate son of Earl Richard, he is said by Charles Cawley to have held the lands only not the title.Cawley, Charles. "Medieval Lands". Retrieved 21 April 2010.