text: This ruler's son was established as the heir to the throne by the Treaty of Wallingford.
full_question: This ruler's son was established as the heir to the throne by the Treaty of Wallingford. Her other sons were William of Anjou and Geoffrey of Anjou. This queen's brother, who died when the White Ship sank, was William Adelin. The period known as The (+) Anarchy was characterized by a rivalry between this ruler and her cousin, (*) Stephen of Blois, whom this leader briefly deposed after the Battle of Lincoln. For 10 points, name this daughter of Henry I who briefly ruled England in 1141.
first_sentence: This ruler's son was established as the heir to the throne by the Treaty of Wallingford.