He had messuages, lands and rents in Rathbranna, Donneynin, Imelaghbegan and Le Newenhagard near Trim; the manors of Derver and Corbally; and an estate around Athleague in County Roscommon.
He served as Chief Justice of the Irish Common Pleas during the latter part of his life, being appointed to the office late in 1302 on the death of Simon de Ludgate.
In 1304 King Edward I of England asked him to re-examine a decision of the Common Pleas, delivered during the Chief Justiceship of Simon de Ludgate.
[3] In '"The Impact of the Bruce Invasion of Ireland" (A New History of Ireland, volume nine, pages 295–96) James Lydon notes that "During the war a petition asked for the removal of Richard d'Exeter, Chief Justice of the Common Bench, who was suspect because of his association with the rebel, Walter de Lacy, who had married his daughter, and with many other who were hostile to the king".
He may have had a brother, Father Nicholas de Exeter, to whom he made a transfer of land in 1305. , This biography of an Irish noble is a stub.