Richard Onslow, 1st Baron Onslow

Onslow's father, Arthur, was a politician, as was his maternal grandfather Thomas Foote, who had served as the Lord Mayor of London in 1649. He was born in Surrey and matriculated at St Edmund Hall, Oxford on 7 June 1671,[2] before being called to the Inner Temple. He entered Parliament as the Member for Guildford in 1679 before he could be called to the bar. One of Onslow's first actions as a member of Parliament was to support the Exclusion Bill, which aimed, unsuccessfully, to deny the Catholic James II of England the British throne. He was re-elected in 1685. He also served as a Lord of the Admiralty from 1690 to 1693.[3]

Onslow was an active back-bencher during his early years in Parliament, and his increasing notoriety as a moderate Whig led to him being nominated for the position of Speaker in 1700 when the member for Surrey. He was unsuccessful in this bid, losing out to the Tory candidate, Robert Harley. However, Onslow managed to attain the position of Speaker seven years later, in 1708. He proved to be a poor Speaker as he made no effort whatsoever to show any kind of neutrality, a fact which upset all but the most fervent Whigs. Onslow's pedantry as Speaker also enhanced his unpopularity. The most famous incident during his Speakership came during the trial of the preacher Dr. Henry Sacheverell, in which Onslow played a large part. When Onslow took the Commons to the House of Lords to hear their judgment on the case he challenged Black Rod on a trifling point of privilege, delaying the proceedings somewhat, which infuriated almost everyone in attendance. Onslow's unpopularity by this point was such that he failed to retain his seat in the 1710 election. In order to remain in the Commons he was forced to sit instead for the rotten borough of St Mawes.

Onslow regained much of his political favour four years later, now restored as the member for Surrey. Upon the death of Queen Anne in 1714 Onslow was a vocal advocate of a Protestant successor, in return for his support Onslow was rewarded by being named as Chancellor of the Exchequer, a position he held for around a year before resigning. He became Father of the House in 1713, and was created Baron Onslow on 19 July 1716.

He served as Lord Lieutenant of Surrey from 1716 until his death the following year. He had married Elizabeth, the daughter and heiress of Sir Henry Tulse, Lord Mayor of London, with whom he had two sons and two daughters. He was succeeded by his son Thomas. His nephew Arthur Onslow later became a long-serving Speaker himself.

Wikimedia Commons has media related to Richard Onslow, 1st Baron Onslow.

• Leigh Rayment's Peerage Pages