Rhys Gryg ('Rhys the Hoarse'; died 1234), real name Rhys ap Rhys, also known as Rhys Fychan ('Rhys the Younger'), was a Welsh prince who ruled part of the Kingdom of Deheubarth.
^Siddons, M. P.: 'The Development of Welsh Heraldry', Vol. 1, p. 289, NLW 1991.