A seneschal (siniscallus, Vulgar or old Frankish Latin, also dapifer) was an officer of an aristocratic household assigned to manage the domestic affairs of the lord. During the course of the twelfth century, the seneschalship also became an office of military command.
The seneschal came also to act as a business manager, coordinating between the receivers of various landholdings and the chamber, camera or treasury, and the chancellory or chapel. When the counts of Anjou began acquiring large territorial holdings outside of their traditional patrimony, their rule became more and more absentee. With the rule of Henry II of England, the office of seneschal had become almost vice-regal. The seneschals of Anjou, like those appointed in Normandy, Poitou, and Gascony had custody of demesne fortresses, the regional treasuries, and presidency of the highest court of regional custom. Although there is no direct evidence that an Exchequer court of Anjou existed, traces of a Poitevin Exchequer and detailed records of the Gascon Exchequers during the reign of Henry III of England would indicate that there most likely was a functioning exchequer, probably at Chinon which served as the central treasury and chief stronghold of Anjou, Maine, and Touraine.
the office continued down the male line of the Craon family