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
Warleigh House are Grade II listed. The red brick dovecote to the east of the main house dates from the early 18th century and is Grade II listed. The boat house to the south west of the house was built c.1800 in the Gothic style, and is Grade II listed. During the reign of King Stephen (1135–1154) Warleigh and the manor of Tamerton were held by Sampson Foliot. Risdon states: His descendant Robert Foliot is stated by Pole to have held Warleigh and Tamerton in 1242, during the reign of King Henry III, and to have left an only daughter and sole