Criccieth Castle a distant relation of Llywelyn ap Gruffudd, began an uprising against English rule that spread quickly through Wales. Several English-held towns were razed and Criccieth (along with Harlech Castle and Aberystwyth Castle) were besieged that winter. Its residents survived until spring when the castle was resupplied. In the 14th century the castle had a notable Welsh constable called Hywel ap Gruffydd, known as Howell the Axe, who fought for Edward III at the Battle of Poitiers in 1356. The castle was used as a prison until 1404 when Welsh forces captured the castle during the rebellion of Owain Glyndŵr. The
Owain Lawgoch Poursuivant d'Amour", a descendant of Ednyfed Fychan, Seneschal of Gwynedd under Owain's ancestors. Owain also received financial support while in France from Ieuan Wyn's father, Rhys ap Robert. While in French service Owain had good relations with Bertrand du Guesclin and others and gained the support of Charles V of France. Welsh soldiery and longbowmen who had fought for Edward I in his campaigns in North Wales remained armed and sold their services to Norman kings in their battles in Scotland and at Crecy and Poitiers. Ironically, the Norman attempt to conquer Wales set in train events which reignited Welsh