5996234 Escape of Gruffudd ap Cynan, King of Gwynedd, from Chester Castle, 11th century (colour litho) by Prytherch, Thomas (1864-1926); Private Collection; (add.info.: Escape of Gruffudd ap Cynan, King of Gwynedd, from Chester Castle, 11th century. Illustration from The Story of England and Wales, by John Finnemore (The Welsh Educational Publishing Co, Merthyr Tydfil, 1905).); by Look and Learn.