Orderic Vitalis records "Guillelmum cognomento Pantulfum et Picodum atque Corbatum, filiosque eius Rogerium et Rodbertum" as vassals of Roger de Montgommery in Shropshire, dated to [1071] from the context. Domesday Book records “Robert fitzCorbet” holding Woolstaston, Ratlinghope, Womerton, Woodcote, Longden and several other places in Shropshire. Henry I King of England granted the manor of Alcester, Warwickshire to Robert Corbet. "Rogerius filius Corbet, Robertus frater eius" subscribed the charter dated to [May 1121] under which Henry I King of England confirmed Shrewsbury abbey. A manuscript reciting the foundation of Shrewsbury abbey records donations including by "Robertus Corbeth" of “villam…Lochetonam”, with the consent of "filius eius Robertus". "…Robto Corbet…" witnessed the charter dated to [1119/24] under which "David comes filii Malcolmi regis Scotorum" founded the monastery of Kelso. "…Robertus Corbet…" witnessed the charter, dated to the reign of Alexander I King of Scotland, under which "David predicti regis Scotie germanum…Cumbrensis regionis princeps" listed the lands of the church of Glasgow. "…Rob Corbet…" witnessed the undated charter under which David I King of Scotland donated property to "ecclesie sci Johis de castro de Rokesburg". 1