Thomas Herbert, 8th Earl of Pembroke

Thomas Herbert, 8th Earl of Pembroke ( 165622 January 1733), styled The Honourable Thomas Herbert until 1683, was a British statesman who served as Lord Privy Seal from 1692 to 1699.

Background Herbert was the third son of Philip Herbert, 5th Earl of Pembroke and his wife Catharine Villiers, daughter of Sir William Villiers, 1st Baronet who was the half-brother of the 1st Duke of Buckingham, George Villiers. Through his grandmother, Susan de Vere, he was a great-grandson of Edward de Vere, 17th Earl of Oxford, the Oxfordians' William Shakespeare. 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. Through them, he would inherit the family seat of the Earls of Pembroke, Wilton House in Wiltshire. He met John Locke in Montpellier, France in the late 1670s; as earl, Herbert became an influential friend and patron of the philosopher.

Public life Herbert was returned unopposed as Member of Parliament for Wilton at the two general elections of 1679 and the general election of 1681. He was no longer able to sit in the House of Commons after assuming the peerage in 1683.

As Lord Lieutenant of Wiltshire, Pembroke commanded the Wiltshire Militia against the Monmouth Rebellion in 1685. They mustered at Salisbury on 17 June and marched to Bath. Hearing that Frome had declared for the Duke of Monmouth, Pembroke marched out with a squadron of Militia Horse carrying some musketeers behind their saddles. On arrival he found a large number of rebel recruits, some armed with pistols or pikes, others with scythes and clubs. Despite being heavily outnumbered, Pembroke entered the town at the head of his musketeers, followed by the horse. A shot was fired at him, but the rebels soon broke and ran before the advancing militia, who then captured the bridge after some fighting. Afterwards Pembroke with his Wiltshire Militia and some Hampshire Militia blocked Monmouth's advance into Wiltshire. The Wiltshire Militia then accompanied the Royal army to Bridgwater in pursuit of the rebels. When Monmouth attempted a night attack on the Royal army camped on Sedgemoor, Pembroke quickly rode from his quarters at Weston Court in Westonzoyland and roused his men; they formed the reserve during the Battle of Sedgemoor. Afterwards they took part in the pursuit and clearing-up operations.

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 making him the most recent non-royal holder of the position; 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. He is the dedicatee of John Locke's An Essay Concerning Human Understanding, Thomas Greenhill's The Art of Embalming and George Berkeley's A Treatise Concerning the Principles of Human Knowledge.

Marriages and progeny 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 ( 1689–1750), eldest son and heir Hon. Robert Sawyer Herbert (died 1769), who inherited Highclere Castle Hon. Charles Herbert Hon. Thomas Herbert ( 1695–1739) Maj-Gen. Hon. William Herbert ( 169631 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 ( 1706–1775), husband of Anne North, daughter of Dudley North and Katherine Yale 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, by whom he had one daughter: Lady Barbara Herbert (died 27 December 1752), who on 3 October 1730 married William Dudley North, son of 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.