Sir Thomas Spencer, 3rd Baronet (1 January 1639 – 6 March 1685) was an English politician who sat in the House of Commons from 1660 to 1679.
[1] His mother remarried Sir Edward Smith, Chief Justice of the Irish Common Pleas, by whom she had two further sons.
During the Exclusion Crisis he was a firm supporter of Charles II, and welcomed him to Oxford at the opening of the Parliament of 1681.
He sat on the jury which found Stephen College "the Protestant joiner" guilty of treason.
His private life, debauched even by Restoration standards (he was quite open about living with his mistress, a young lady of good family, with whom he had a daughter), was a subject of much amusement to his neighbours.