Reeve (England)
Originally in Anglo-Saxon England the reeve was a senior official with local responsibilities under the Crown e.g. as the chief magistrate of a town or district. Subsequently, after the Norman conquest, it was an office held by a man of lower rank, appointed as manager of a manor and overseer of the peasants. In this later role, historian H. R. Loyn observes, "he is the earliest English specialist in estate management."
Read more about Reeve (England): Anglo-Saxon England, After The Conquest, Depiction By Chaucer