House of Blois chose a wife from the House of Champagne (Adela of Champagne) as a counterpoise to Angevin power. The senior line of the House of Blois became extinct with the death of Joan I of Navarre, wife of Philip IV of France, in 1305. Champagne and Navarre passed to the Capetian dynasty. King Stephen I of England, 1135–1154, was both a member of the House of Blois and the last Anglo-Norman King, being the grandson of William the Conqueror through his daughter Adela of Normandy. A branch of the family was established in Sancerre by Stephen I of Sancerre, a younger
Stephen, King of England war. Stephen burst into activity in early 1154, travelling around the kingdom extensively. He began issuing royal writs for the south-west of England once again and travelled to York where he held a major court in an attempt to impress upon the northern barons that royal authority was being reasserted. After a busy summer in 1154, however, Stephen travelled to Dover to meet the Count of Flanders; some historians believe that the King was already ill and preparing to settle his family affairs. Stephen fell ill with a stomach disorder and died on 25 October at the local priory, being