The killing of Bleddyn ap Cynfyn in 1075 led to civil war and gave the Normans an opportunity to seize lands in North Wales. In 1081 Gruffudd ap Cynan, who had just won the throne of Gwynedd from Trahaearn ap Caradog at the Battle of Mynydd Carn was enticed to a meeting with the Earl of Chester and Earl of Shrewsbury and promptly seized and imprisoned, leading to the seizure of much of Gwynedd by the Normans. In the south William the Conqueror advanced into Dyfed founding castles and mints at St David's and Cardiff. Rhys ap Tewdwr of Deheubarth was killed in 1093 in Brycheiniog, and his kingdom was seized and divided between various Norman lordships. The Norman conquest of Wales appeared virtually complete.