A portrait of “Mr. Brent” was left to Richard Willing Byrd in the will of Mary Willing Byrd and then seems to have disappeared from the record. Mr. Brent has not been identified. He was likely an acquaintance of William Byrd II or William Byrd III.
See: Mary Willing Byrd, “The Will of Mrs. Mary Willing Byrd, of Westover, 1813, with a List of the Westover Portraits,” Virginia Magazine of History and Biography 6, no. 4 (April 1899): 345-358.