Born: 1693, 13th November.

Place of Birth: Tidmington, Worcestershire.

Died: 1750, 14th December. His death was described as 'drownded in Claret'. He was buried at York Minster.

Parents: Hon. Thomas Watson-Wentworth and Anne Proby, daughter of Sir Thomas Proby, 1st Baronet.

Marriages: 22 September 1716, Lady Mary Finch, daughter of Daniel Finch, Earl of Nottingham and Hon. Anne Hatton.

Children:  William Viscount Higham 1728, Charles 2nd Marquess Rockingham 1730, Lady Anne 17??, Lady Mary 1727, Lady Charlotte 1732 and Lady Henrietta 1737.

Occupation: Politician.

Notes:  Thomas was admitted to St John's College, Cambridge, in May 1707 and awarded an MA in 1708. In 1708 he bought Hallfield House, Sheffield. He succesed his father to Wentworth Woodhouse in Yorkshire.

In 1715, Thomas was elected MP for the family borough of Malton. In 1722 general election, he was returned unopposed. In 1725, he was appointed Knight of the Bath. In 1727, he was returned as MP for Yorkshire. In 1728, he was created Baron Malton and left the House of Commons.

He was admitted to the Privy Council of Ireland in 1733 and was Lord Lieutenant of of the West Riding of Yorkshire, from 1733 to 1750. In 1734, he was created Earl of Malton and in 1746, created Marquess of Rockingham.