Overview
John Hayes St Leger (1756–1800) was an Irish army officer, courtier, rake and politician. He was Member of the Parliament of Great Britain for from 1791 to 1796.
Life
He was the eldest son of John St Leger of Grangemellon (1726–1769) and his wife Mary Butler, daughter of Thomas Butler; Anthony St Leger and Barry St Leger were his uncles. He was educated at Eton College. He was brought up as a teenager in St James's Place, London, by his paternal grandmother Levina, widow of Sir John St Leger. She died there in 1771.
St Leger spent some time at the French court. He acquired the nickname "Handsome Jack", and came to know George, Prince of Wales. While George III warned against the family reputation, his son came to see St Leger as "one of the best fellows". In 1785 financial problems caused him to break off his life in England, spending time in Ireland. His fortunes were restored in 1786, when he was heir to his uncle Anthony.
Military career
From Wikipedia (CC BY-SA 4.0).