( D.1282), prince of Gwynedd in North Wales; also known as Llywelyn ap Gruffydd. Proclaiming himself prince of all Wales in 1258, he was recognized by Henry III in 1265. His refusal to pay homage to Edward I led the latter to invade and subjugate Wales (1277–84); Llewelyn died in an unsuccessful rebellion.
Definition of Llewelyn in:
- The US English dictionary