Earl of Chatham Earl of Chatham Earl of Chatham, in the County of Kent, was a title in the Peerage of Great Britain. It was created in 1766 for William Pitt the Elder on his appointment as Lord Privy Seal, along with the subsidiary title Viscount Pitt, of Burton Pynsent in the County of Somerset, also in the Peerage of Great Britain. The first Earl's wife, the former Lady Hester Grenville, daughter of the 1st Countess Temple, had earlier been created Baroness Chatham, of Chatham in the County of Kent, also in the Peerage of Great Britain, in 1761, as at that stage
Hester Pitt, Countess of Chatham over twenty years as a friend of her brothers, on 16 November 1754 at her home in Argyle Street, London. They spent their ten-day honeymoon at West Wickham, Kent. The marriage was a happy one and the couple moved to a house in Hayes, Kent in 1756. They had five children: On 4 December 1761, she was created Baroness Chatham, of Chatham, in the County of Kent, with remainder to her sons by William Pitt, who was later created Earl of Chatham in 1766. Hester Pitt, Countess of Chatham Hester Pitt, Countess of Chatham, 1st Baroness Chatham (; 8 November