Sir John St Aubyn, 5th Baronet, English politician (d. 1839)
Sir John St Aubyn, 5th Baronet (17 May 1758 – 10 August 1839), was a British Member of Parliament, High Sheriff of Cornwall and Grand Master of the Freemasons. Born in London, he succeeded to the baronetcy on 12 October 1772, at which point he inherited Clowance, the family's estate near Crowan, Cornwall.

1758May, 17
Sir John St Aubyn, 5th Baronet
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Events on 1758
- 21May
French and Indian War
Ten-year-old Mary Campbell is abducted in Pennsylvania by Lenape during the French and Indian War. She is returned six and a half years later. - 12Jun
Siege of Louisbourg (1758)
French and Indian War: Siege of Louisbourg: James Wolfe's attack at Louisbourg, Nova Scotia commences. - 26Jul
Siege of Louisbourg (1758)
French and Indian War: The Siege of Louisbourg ends with British forces defeating the French and taking control of the Gulf of Saint Lawrence. - 25Aug
Battle of Zorndorf
Seven Years' War: Frederick II of Prussia defeats the Russian army at the Battle of Zorndorf. - 14Oct
Battle of Hochkirch
Seven Years' War: Austria defeats Prussia at the Battle of Hochkirch.