 He promised to relinquish the seat at the earliest possible moment and allow the government to name his replacement in accordance with the original arrangement; but he died a few months later, still MP for Old Sarum.Pitt had married, c.1731, Christian, the daughter of Sir Thomas Lyttelton, 4th Baronet, M.P., of Hagley, Worcestershire and the sister of Lord Lyttelton.They had two sons and two daughters.