After the marriage of Eleanor of Aquitaine with Louis VII of France in 1138, the Seneschal of Poitou was responsible for the day-to-day affairs of the county. From 1154, through Eleanor's second marriage, Poitou passed to the kings of England.
After Eleanor of Aquitaine's marriage to Louis VII of France in 1138, the Seneschal of Poitou was responsible for managing the county's daily affairs.  From 1154 onwards, through Eleanor's second marriage, Poitou became part of the English monarchy.