The Washington family is of an ancient English stock, the genealogy of which has been traced up to the century immediately succeeding the Conquest. Among the knights and barons who served under the Count Palatine, Bishop of Durham, to whom William the Conqueror had granted that important See, was WILLIAM DE HERTBURN. At that period surnames were commonly derived from castles or estates; and de Hertburn, in 1183, in exchanging the village of Hertburn for the manor of Wessyngton, assumed the name of DE WESSYNGTON. From this period the family has been traced through successive generations, until the name, first dropping the de, varied from Wessyngton to Wassington, Wasshington, and finally to Washington.