Appointment '' by
Thomas Lawrence. Castlereagh served as Liverpool's
Foreign Secretary from 1812 until 1822, playing a major role in assembling the coalition against
Napoleon and the postwar
Concert of Europe Following the
assassination of Spencer Perceval on 11 May 1812, the Cabinet proposed Liverpool as his successor, but
James Stuart-Wortley moved a vote of no confidence in the
House of Commons. The resolution was passed by four votes and Liverpool resigned, only to be reinstated when
George, the Prince Regent, failed in his attempts to find an alternative. Liverpool was confirmed as prime minister on 8 June 1812. After poor harvests led to rising bread prices, riots broke out in
East Anglia in 1816. In
Littleport a rioter was killed when troops opened fire and five rioters were subsequently executed. There was also a revival of
Luddite activity. In November and December 1816, followers of
Thomas Spence organised two meetings at
Spa Fields in London at which the radical
Henry Hunt was invited to speak. The second meeting was followed by the
Spa Fields riots and an unsuccessful attempt to seize the
Tower of London and
Bank of England. The following month, the Prince Regent's carriage window was broken in a possible assassination attempt. In response to these incidents, a measure to temporarily suspend
habeas corpus was passed by both Houses of Parliament. On 16 August 1819, between 20,000 and 60,000 people gathered at
St Peter's Fields,
Manchester, to hear
Henry Hunt and other speakers demand parliamentary reform in the form of
universal suffrage and annual parliaments. Against the advice of home secretary Sidmouth, local magistrates ordered troops to disperse the crowd and arrest the speakers. Eleven people were killed and hundreds injured in what became known as the
Peterloo Massacre. Later that year, after the Whigs had tried to make political capital out of the Peterloo Massacre, parliament passed the
Six Acts, which were designed to curtail disturbances of the peace while preserving traditional liberties. Later in 1822, following the suicide of Castlereagh, Canning became foreign secretary and leader of the House of Commons, while two of his followers were promoted,
F. J. Robinson to the Chancellorship of the Exchequer and
William Huskisson to the Presidency of the Board of Trade. ==Retirement and death==