 William perambulated with King David in Perthshire and was a witness on many important charters, notably the foundation charter of Jedburgh Abbey and others for Countess Ada.He and Hugh witnessed a charter of King David granting lands at Crail.From Malcolm IV of Scotland he obtained lands at Yester ("Jhestrith") in the parish of St. Bothans, East Lothian., Hugh appears in further royal charters till after 1189, and appears to have witnessed many of the charters of King William the Lion (ruled 1165–1214), under whom he rose to distinction.