sentences:  His sister was Rhoda Delaval, an artist and wife of Edward Astley.Delaval served as Member of Parliament for Berwick on Tweed 1754–1761, 1765–1774 and 1780–1786.He was created a baronet, of Seaton Delaval in the County of Northumberland, in the Baronetage of Great Britain in 1761, and in 1783 he was raised to the Peerage of Ireland as Baron Delaval, of Redford in the County of Wicklow.