 Llywelyn was probably not in fact master of all Gwynedd at this time since it was his cousin Gruffudd ap Cynan who promised homage to King John for Gwynedd in 1199.Gruffudd ap Cynan died in 1200 and left Llywelyn the undisputed ruler of Gwynedd.In 1201, he took Eifionydd and Llŷn from Maredudd ap Cynan on a charge of treachery.