George III

George III (George William Frederick; 4 June 1738[lower-alpha 3]  29 January 1820) was King of Great Britain and of Ireland from 25 October 1760 until his death in 1820. Both kingdoms were in a personal union under him until the Acts of Union 1800 merged them on 1 January 1801. He then became King of the United Kingdom of Great Britain and Ireland. He was concurrently Duke and Prince-elector of Brunswick-Lüneburg ("Hanover") in the Holy Roman Empire before becoming King of Hanover on 12 October 1814. He was a monarch of the House of Hanover whounlike his two predecessorswas born in Great Britain, spoke English as his first language,[1] and never visited Hanover.[2]

George III
Full-length portrait in oils of a clean-shaven young George in eighteenth century dress: gold jacket and breeches, ermine cloak, powdered wig, white stockings, and buckled shoes.
Coronation portrait by Allan Ramsay, 1762
King of Great Britain and Ireland,[lower-alpha 1]
Elector/King of Hanover[lower-alpha 2]
Reign25 October 1760  29 January 1820
Coronation22 September 1761
PredecessorGeorge II
SuccessorGeorge IV
Prince RegentGeorge (1811–1820)
Born4 June 1738 [NS][lower-alpha 3]
Norfolk House, St James's Square, London, England
Died29 January 1820(1820-01-29) (aged 81)
Windsor Castle, Berkshire, England
Burial16 February 1820
(m. 1761; died 1818)
George William Frederick
FatherFrederick, Prince of Wales
MotherPrincess Augusta of Saxe-Gotha
SignatureHandwritten "George" with a huge leading "G" and a large capital "R" at the end for "Rex"

George's life and reign were marked by a series of military conflicts involving his kingdoms, much of the rest of Europe, and places farther afield in Africa, the Americas and Asia. Early in his reign, Great Britain defeated France in the Seven Years' War, becoming the dominant European power in North America and India. However, many of Britain's American colonies were soon lost in the American War of Independence. Further wars against revolutionary and Napoleonic France from 1793 concluded in the defeat of Napoleon at the Battle of Waterloo in 1815. In 1807, the transatlantic slave trade was banned from the British Empire.

In the later part of his life, George had recurrent—and eventually permanent—mental illness. Although it has since been suggested that he had bipolar disorder or the blood disease porphyria, the cause of his illness remains unknown. George suffered a final relapse in 1810, and his eldest son, the Prince of Wales, became Prince Regent the following year. When the King died in 1820, the Regent succeeded him as George IV. At the time of his death, George III was the longest-lived and longest-reigning British monarch; he remains the longest-lived and longest-reigning male monarch. Historical analysis of his life has gone through a "kaleidoscope of changing views" that have depended heavily on the prejudices of his biographers and the sources available to them.[3]

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