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
Peter of Blois Peter of Blois Peter of Blois (; ) was a French cleric, theologian, poet and diplomat. He is particularly noted for his corpus of Latin letters. Peter of Blois was born about 1130. Earlier opinion tended to place the date later in the 1130s, but an earlier date is now considered more likely. His family were minor nobility of Breton origin. After an early visit to Paris, Peter received his literary education at the school attached to Tours Cathedral in the early 1140s probably accompanied and mentored by an older namesake and relative, Pierre de Blois. He studied under Bernard