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 his inheritance. Owain, his only son, was born in Surrey, where his grandfather had acquired the manor of Tatsfield. Tatsfield, a small village only 17 miles from the centre of London, still has Welsh place names e.g. Maesmawr Road (trans: Great Field Road). Thomas died in 1363 and Owain returned from abroad to claim his patrimony in 1365. Owain Lawgoch was in French service by 1369 and his lands in Wales and England were confiscated. The year in which Owain entered the service of the king of France is uncertain. Froissart claims that he fought on the French side at