Sir Thomas Proby, 1st Baronet

Sir Thomas Proby, 1st Baronet (18 October 1632 – 22 April 1689), was an English politician associated with Elton Hall in Huntingdonshire, now part of Cambridgeshire. He served in the House of Commons during the period from 1660 to 1685.

Proby was born to Sir Heneage Proby of Elton and Raans, Buckinghamshire, and his wife Ellen Allen, daughter of Edward Allen of Finchley, Middlesex. In 1660, he was elected as a Member of Parliament representing Amersham in the Convention Parliament. Subsequently, he was re-elected as MP for Amersham in the Cavalier Parliament, serving until 1679. In 1662, Proby was created a baronet. Following his representation of Amersham, he was elected as MP for Huntingdonshire in 1679 and served until 1685.

Throughout his lifetime, Proby engaged in enhancements to Elton Hall, though specific details of these improvements are not provided. He died at the age of 56.

In terms of family connections, Proby married Frances Cotton, the daughter of Sir Thomas Cotton, 2nd Baronet of Connington, Huntingdonshire. Their daughter, Alice Proby, married the Hon. Thomas Watson-Wentworth, Member of Parliament. Alice and Thomas Watson-Wentworth had a single child, Thomas Watson-Wentworth, who was created the 1st Marquess of Rockingham.

Proby's own son predeceased him, dying while traveling, which resulted in the extinction of the baronetcy upon Proby's death. The Elton estate was inherited by his brother, John Proby.