Roger Bigod (died 1107) was a Norman knight who came to England in the Norman Conquest. He held great power in East Anglia, and five of his descendants were Earl of Norfolk. He was also known as Roger Bigot, appearing as such as a witness to the Charter of Liberties of Henry I of England. Roger came from a fairly obscure family of poor knights in Normandy. Robert le Bigot, certainly a relation of Roger's, possibly his father, acquired an important position in the household of William, Duke of Normandy (later William I of England), due, the story goes, to his disclosure to the duke of a plot by the duke's cousin William Werlenc. Both Roger and Robert may have fought at the Battle of Hastings, and afterwards they were rewarded with a substantial estate in East Anglia. The Domesday Book lists Roger as holding six lordships in Essex, 117 in Suffolk and 187 in Norfolk