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
English claims to the French throne Capetian dynasty, was ultimately victorious and retained control of France. Despite this, English and British monarchs continued to prominently call themselves kings of France, and the French fleur-de-lys were included in the royal arms. This continued until 1801, by which time France no longer had any monarch, having become a republic. The Jacobite claimants, however, did not explicitly relinquish the claim. The title was first assumed in 1340 by Edward III of England, the Kingdom of England being ruled by the French Plantagenet dynasty at the time. Edward III claimed the throne of France after the death of his uncle