The Kingdom of Gwynedd was a Welsh kingdom and a Roman Empire successor state that emerged in sub-Roman Britain in the 5th century during the Anglo-Saxon settlement of Britain.
Bryn Eryr, recreation of pre Roman roundhouse, it's a 2,000-year-old Celtic Iron Age home.
Kingdom of Gwynedd c. 620
Gravestone of Cadfan ap Iago, father of Cadwallon ap Cadfan
Gruffudd ap Cynan, sometimes written as Gruffydd ap Cynan, was King of Gwynedd from 1081 until his death in 1137. In the course of a long and eventful life, he became a key figure in Welsh resistance to Norman rule.
Gruffudd was buried in Bangor Cathedral.
Gruffudd ap Cynan. Coats of Arms of Welsh King, Chirk Castle