Dolwyddelan, along with nearby Dolbadarn ... we see today probably date to the mid-13th century. The largest castle in Wales, the castle was built in the 13th century by Gilbert de Clare, a ...
He was now leader of the free princes of Wales, and was ruler ... He embarked on a programme of castle building including Criccieth, Castell Y Bere, Dolwyddelan and Tomen Y Bala.