Geoffrey of Brionne (962 - died after 1023), was Count of Eu and Brionne in the early eleventh century.
Although he was an illegitimate son of Duke Richard I of Normandy,[1] we know very little of his life. The name of his mother is unknown.
According to Robert Torigni, Geoffrey probably received the title of Count of Eu from his half-brother, Duke Richard II.[2] Whether he was given the title of Count of Brionne is doubtful. Orderic Vitalis wrote that Geoffrey's father gave him the castle and the county of Brionne, Robert Torigni speaks instead of a simple assignment of the fortress, according to the last testament of Richard II.
By an unknown wife, he had a son: