Mary Blackwell, daughter and heir of John Blackwell, of Wasing, Bershire, married Sir Ralph Verney (1613-1696). Sir Ralph was the eldest son of Sir Edmund Verney, Marshal and Standard Bearer to Charles I and was killed at Edgehill in 1642. Sir Ralph refused the covenant and went abroad 1643. His estates were confiscated in 1646, but restored in 1650. He returned to England in 1653 and was imprisoned in 1655. He was created baronet 1661. He was MP for Buckingham 1680, 1685, 1689. Their eldest son John was created 1st Vicsount Fermanagh 1703.