Herfast or Arfast (died 1084) was the first Lord Chancellor of Norman England.
Born in Normandy, Herfast joined William the Conqueror during the Norman Conquest of England and was appointed head of the royal writing office after the Battle of Hastings.
[2] He attempted to move his diocese to Bury St. Edmunds Abbey, with the assistance of Herman the Archdeacon, but the proposal was opposed by its abbot, Baldwin.
Herfast finally lost in the King's Court in 1081 and was fined a crippling amount, which was unpaid when he died.
[4] He was a married bishop, and his sons held land in Norfolk at the time of Domesday Book in 1086.