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
Dolbadarn Castle (Turner) painting is particularly notable as it is one of two that Turner submitted as Diploma works to the Royal Academy in 1800. The painting is an artist's impression of a 13th-century event of some importance in Welsh history. It depicts Owain Goch, the brother of Prince Llywelyn ap Gruffudd (LLywelyn the Second), being taken by soldiers to prison at Dolbadarn Castle. Owain was imprisoned at the Castle between 1255 and 1277, when he was released. The imprisonment of Owain, dressed in red in the painting, left his brother Llywelyn free to concentrate on uniting Wales against the English. Turner first