Arthur Onslow: Wikis


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A 1728 portrait of Arthur Onslow by Hans Hysing

Arthur Onslow (1 October 1691 – 17 February 1768) was an English politician. He was the elder son of Foot Onslow (died 1710) and his wife Susannah.

Onslow was born in Kensington and educated at The Royal Grammar School, Guildford and Winchester College and matriculated at Wadham College, Oxford in 1708, although he took no degree. He was called to the bar at the Middle Temple in 1713, but had no great practice in law.

When George I came to the throne, Onslow's uncle Sir Richard Onslow was appointed Chancellor of the Exchequer, and Arthur became his private scretary. When Richard left office in 1715, Arthur obtained a place as receiver general of the Post Office. He became recorder of Guildford in 1719. His Post Office position was not compatible with a parliamentary seat, and he passed it on to his younger brother Richard when he entered Parliament in 1720 for Guildford.[1]

On 8 October 1720, he married Anne Bridges (1703–1763), daughter of John Bridges of Thames Ditton, Surrey, and the niece and coheir of Henry Bridges of Imber Court. His father-in-law died in the mid-1720s, and Onslow came into the entire estate, which had increased through the addition of the holding of Ann's sister, who had recently died, considerably improving his financial circumstances. Onslow made Imber Court in Thames Ditton his principal seat. Onslow and Anne had two children:

Earlier in the year, in February, he had been returned as Whig Member of Parliament for Guildford at a by-election. He represented that borough until Parliament was dissolved in 1727. During this period, he was known to have declared against a proposal to levy Roman Catholics in 1722 and opposed the motion to reverse Bolingbroke's attainder in 1725. In 1726, he was one of the Commons managers for the trial of Macclesfield for corruption.

In 1727, he was returned both for Guildford and Surrey, with the highest majority ever recorded, and elected to serve for Surrey; his younger brother Richard Onslow replaced him at Guildford in a by-election. On 23 January 1728, he was unanimously elected Speaker of the House of Commons, a post which had been held by his uncle Sir Richard Onslow, Bt and his ancestor Richard Onslow. He would be unanimously re-elected Speaker in 1735, 1741, 1747, and 1754, setting a record for length of service in that office. On 25 July 1728, he was sworn of the Privy Council, and was also made a bencher of the Inner Temple that year. The following year, on 13 May 1729, he was made Chancellor and Keeper of the Great Seal to Queen Caroline, who was godmother to his son George in 1731.

Onslow's speakership was distinguished by his great integrity in a corrupt and jobbing age. His great achievement as Speaker was to assert the independence, authority, and impartiality of that post. While he continued to participate in ordinary political activity, speaking and voting in committee, he did not hesitate to oppose Government policy when necessary. Onslow saw his role to be the protection and defense of Parliament in the tradition established by the Glorious Revolution, and insisted on the rigid and detailed observation of parliamentary forms and procedure, which he viewed as a protection to independent MPs. However, his devotion to precedent did lead him to condemn the reporting of parliamentary debates as breach of privilege.

On 20 April 1734, Onslow received the valuable office of Treasurer of the Navy, but in 1742, after casting his vote on a highly political issue, resigned it to confute claims of political influence. He did continue to receive emoluments from the office of Speaker, such as those for private bills. He also became recorder of Guildford and high steward of Kingston upon Thames in 1737. During the 1730s, he was involved in the effort that led to the charter of the Foundling Hospital and was one of its founding governors.

Due to failing health, he retired from Parliament in 1761, doing so with the unanimous thanks of the House of Commons. He received an annuity of £3000 from the King for his life and that of his son, the first occasion upon which a retiring Speaker was pensioned. Onslow was also awarded the Freedom of the City of London, and was shortly thereafter voted a trustee of the British Museum. He died at his home in London in 1768 and was buried at Thames Ditton, but his body and that of his wife were later removed to the Onslow burial place in Merrow Church, Surrey.

Horace Walpole at one point said of him that he was "too pompous to be loved, though too ridiculous to be hated", but subsequently wrote in more considered fashion:

"No man had ever supported with more firmness the privileges of the House, nor sustained the dignity of his office with more authority. His knowledge of the constitution equalled his attachment to it. To the Crown he behaved with all the decorum of respect, without sacrificing his freedom of speech. Against the encroachments of the house of peers he was an inflexible champion. His disinterested virtue supported him through all his pretensions; and though to conciliate popular favour he affected an impartiality that by turns led him to the borders of insincerity and contradiction; and though he was often so minutely attached to forms, that it made him troublesome in affairs of higher moment, it will be difficult to find a subject, whom gravity will so well become, whose knowledge will be so useful and so accurate, and whose fidelity to his trust will prove so unshaken."[2]


Speaker Onslow's nephew, George Onslow (1731–1792), a son of his brother Richard, was a lieutenant colonel and Member of Parliament for Guildford from 1760 to 1784. George had a younger brother Richard (1741–1817), who entered the navy and was made an admiral in 1799.

One of his descendants, Cranley Onslow, was a Member of Parliament in the late 20th century.

Arthur Onslow in Thames Ditton

Onslow gained much by his marriage to Ann, niece of Henry Bridges. His father-in-law died in the mid-1720s, and Onslow came into the entire estate, which had increased through the addition of the holding of Ann's sister, who had recently died. Onslow made Imber Court in Thames Ditton his principal seat. Early in his career, Onslow became High Steward of Kingston upon Thames. When he died in 1768 at the age of 76, he was buried at St Nicholas Church, Thames Ditton. But subsequently his body, and that of his wife Ann, were moved to the Onslow burial site at Merrow Church, near Clandon.


  1. ^ Sedgwick, Romney (1970). The House of Commons 1715-1754 v. 2. New York: Oxford University Press. pp. 308–309.  
  2. ^ Horace Walpole, Memoirs of the Reign of King George III (ed. Derek Jarrett, Yale University Press, 2000, volume 1, pages 35-36)
Political offices
Preceded by
Sir Spencer Compton
Speaker of the House of Commons of Great Britain
1728 – 1761
Succeeded by
Sir John Cust
Preceded by
The Viscount Torrington
Treasurer of the Navy
1734 – 1742
Succeeded by
Thomas Clutterbuck
Parliament of Great Britain
Preceded by
Morgan Randyll
Robert Wroth
Member of Parliament for Guildford
with Morgan Randyll 1720–1722
Thomas Brodrick 1722–1727
Richard Onslow 1727–1728

1720 – 1728
Succeeded by
Richard Onslow
Henry Vincent
Preceded by
John Walter
Thomas Scawen
Member of Parliament for Surrey
with Thomas Scawen 1727–1741
The Lord Baltimore 1741–1751
Thomas Budgen 1751–1761

1727 – 1761
Succeeded by
George Onslow
Sir Francis Vincent, Bt

1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

ARTHUR ONSLOW (1691-1768), English politician, elder son of Foot Onslow (d. 171 o), was born at Chelsea on the 1st of October 1691. Educated at Winchester and at Wadham College, Oxford, he became a barrister and in 1720 entered parliament as a member for the borough of Guildford. Seven years later he became one of the members for Surrey, and he retained this seat until 1761. In 1728 he was elected Speaker of the House of Commons, being the third member of his family to hold this office; he was also chancellor to George II.'s queen, Caroline, and from 1734 to 1742 he was treasurer of the navy. He retired from the position of Speaker and from parliament in 1761, and enjoyed an annuity of £3000 until his death on the 17th of February 1768. As Speaker, Onslow was a conspicuous success, displaying knowledge, tact and firmness in his office; in his leisure hours he was a collector of books.

Speaker Onslow's nephew, George Onslow (1731-1792), a son of his brother Richard, was a lieutenant-colonel and member of parliament for Guildford from 1760 to 1784. He had a younger brother Richard (1741-1817), who entered the navy and was made an admiral in 1799.

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