Wikipedia
Withenoc
Withenoc or Guihenoc de La Boussac (also spelled in other ways, including Wihenoc, Gwethenoc, Withenock, etc.) (c. 1035 - after 1101) was a nobleman and monk of Breton origin, who was lord of Monmouth between 1075 and 1082 and was responsible for founding the Priory at Monmouth.