Thomas Herbert, 8th Earl of Pembroke

Herbert was the third son of Philip Herbert, 5th Earl of Pembroke and his wife Catharine Villiers, daughter of Sir William Villiers, 1st Baronet. He was educated at Tonbridge School, Kent. Both of his brothers (the 6th Earl and the 7th Earl) having died without a male heir, he succeeded to the earldoms in 1683.

Herbert was returned unopposed as Member of Parliament for Wilton at the two general elections of 1679 and the general election of 1681.[1] He was no longer able to sit in the House of Commons after assuming the peerage in 1683. From 1690 to 1692 as Lord Pembroke, he was First Lord of the Admiralty. He then served as Lord Privy Seal until 1699, being in 1697 the first plenipotentiary of Great Britain at the congress of Ryswick. On two occasions he was Lord High Admiral for a short period; he was also Lord President of the Council and Lord Lieutenant of Ireland, while he acted as one of the Lords Justices seven times; and he was President of the Royal Society in 1689–1690.[2] He is the dedicatee of John Locke's An Essay Concerning Human Understanding and Thomas Greenhill's The Art of Embalming.

He married three times:

• Firstly in 1684 to Margaret Sawyer, only daughter of Sir Robert Sawyer of Highclere Castle by his wife Margaret Suckeley, by whom he had seven sons and five daughters:
  • Henry Herbert, 9th Earl of Pembroke (c. 1689–1750), eldest son and heir
  • Hon. Robert Sawyer Herbert (died 1769), who inherited Highclere Castle
  • Hon. Charles Herbert
  • Hon. Thomas Herbert (c. 1695–1739)
  • Maj-Gen. Hon. William Herbert (c. 1696 – 31 March 1757), married Catherine Elizabeth Tewes (died 28 August 1770) and had Henry Herbert, 1st Earl of Carnarvon, who inherited Highclere Castle from his uncle
  • Hon. John Herbert
  • Hon. Nicholas Herbert (c. 1706–1775)
  • Lady Catherine Herbert (died September 1716), wife of Sir Nicholas Morice, 2nd Baronet
  • Lady Margaret Herbert (died 15 December 1752)
  • Lady Elizabeth Herbert
  • Lady Anne Herbert
  • Lady Rebecca Herbert, wife of William Nevill, 16th Baron Bergavenny
• Secondly in 1708 he married Barbara Slingsby (died 1 August 1721), daughter of Sir Thomas Slingsby, 2nd Baronet and widow of John Arundell, 2nd Baron Arundell of Trerice (1649–1698), of Trerice, Cornwall,[3] by whom he had one daughter:
  • Lady Barbara Herbert (died 27 December 1752), who on 3 October 1730 married Edward Dudley North.
• Thirdly he married Mary Howe (died 1749), daughter of Scrope Howe, 1st Viscount Howe; they had no children. She subsequently married John Mordaunt, MP.

• Doyle, James William Edmund (1886). The Official Baronage of England: showing the succession, dignities, and offices of every peer from 1066 to 1885, Vol. III. London: Longmans, Green & Co. Retrieved 25 January 2007.
• Collins, Arthur (1812). Peerage of England. F. C. and J. Rivington. pp. 142–143. Retrieved 3 November 2007.