city. Neighbouring seats, clockwise from north, are: Hitchin and Harpenden, Welwyn Hatfield, Hertsmere, Watford, and Hemel Hempstead. Members of Parliament MPs 1553–1640 MPs 1640–1852 MPs since 1885 Election results Elections in the 2010s This constituency underwent boundary changes between the 2005 and 2010 general elections and thus calculation of change in vote share is not meaningful Elections in the 2000s Elections in the 1990s This constituency underwent boundary changes between the 1992 and 1997 general elections and thus calculation of change in vote share is not meaningful Elections in the 1980s This constituency underwent boundary changes between the 1979 and 1983 general elections and thus calculation of change in vote share is not meaningful Elections in the 1970s This constituency underwent boundary changes between the 1970 and February 1974 general elections and thus calculation of change in vote share is not meaningful. Elections in the 1960s Elections in the 1950s This constituency underwent boundary changes between the 1951 and 1955 general elections and thus calculation of change in vote share is not meaningful This constituency underwent boundary changes between the 1945 and 1950 general elections and thus calculation of change in vote share is not meaningful Elections in the 1940s This constituency underwent boundary changes between the 1935 and 1945 general elections and thus calculation of change in vote share is not meaningful Elections in the 1930s Elections in the 1920s Elections in the 1910s Elections in the 1900s Elections in the 1890s Elections in the 1880s Elections in the 1850s On 3 May 1852, the borough was disenfranchised after a Royal Commission found proof of extensive bribery. The electorate was incorporated into Hertfordshire. Caused by Raphael's death Elections in the 1840s Caused by Hare's appointment as a Lord-in-Waiting to Queen Victoria Caused by Grimston's resignation by accepting the office of Steward of the Chiltern Hundreds Elections in the 1830s See also List of parliamentary constituencies in Hertfordshire Notes References Sources Robert Beatson, A Chronological Register of Both Houses of Parliament (London: Longman, Hurst, Res & Orme, 1807) D Brunton & D H Pennington, Members of the Long Parliament (London: George Allen & Unwin, 1954) Cobbett's Parliamentary history of England, from the Norman Conquest in 1066 to the year 1803 (London: Thomas Hansard, 1808) F W S Craig, British Parliamentary Election Results 1832-1885 (2nd edition, Aldershot: Parliamentary Research Services, 1989) Henry Stooks Smith, The Parliaments of England from 1715 to