The 1820 UK general election produced the first parliament under the reign of the King from what house?
United Kingdom general election, 1820: The 1820 UK general election was triggered by the death of King George III and produced the first parliament of the reign of his successor, George IV. George IV of the United Kingdom: George IV (George Augustus Frederick; 12 August 1762 – 26 June 1830) was King of the United Kingdom of Great Britain and Ireland and of Hanover following the death of his father, George III, on 29 January 1820, until his own death ten years later.
Hanover