Complex sentence: Clifford married Margaret Bromflete (1443--12 April 1493), the daughter and heiress of Henry Bromflete, Lord Vescy by his second wife, Eleanor Fitz Hugh, by whom he had two sons and a daughter:;;.
Split into simpler sentences: Clifford married Margaret Bromflete (1443--12 April 1493), the daughter and heiress of Henry Bromflete, Lord Vescy by his second wife Eleanor Fitz Hugh. By Margaret Bromflete Clifford had two sons and a daughter:;;.