Frederick St John (British Army officer)

The Hon. Frederick St John (20 December 1765 — 19 November 1844 ) was an officer of the British Army and a politician. He rose to the rank of general during his career and saw service during the French Revolutionary and Napoleonic Wars, and the Second Anglo-Maratha War. He also sat briefly for the constituency of Oxford.

Family and early life
Frederick St John was born the second son of Frederick St John, 2nd Viscount Bolingbroke and Lady Diana Beauclerk. St John enlisted in the Army as an ensign in the 85th Regiment of Foot in 1779, at the age of 14. He served in the Indies and the Channel Islands until 1783. He was promoted to lieutenant in 1780, and then became a captain in the 95th Regiment of Foot in 1781. This was followed by a promotion to be major in the 104th Regiment of Foot in 1783. In parallel to his military career, he socialised in exclusive gentlemen's clubs: he joined Brooks's on 17 May 1783, and the Whig Club on 6 March 1787. He continued to rise through the ranks, becoming a lieutenant-colonel in the 2nd Regiment of Foot in 1791, a colonel in 1795, and being promoted to major-general in 1798.

French Revolutionary Wars
St John served in Ireland in 1798 as the lieutenant of General Gerard Lake, and followed him to India when he was appointed Commander-in-Chief of the British forces in the colony. In 1800, St John took passage with his wife, Arabella Craven, on the Queen, which caught fire and was destroyed while in harbour in Salvador. St John and his wife then joined the East Indiaman Kent to complete the journey. On 7 October, Kent was captured by the French privateer Confiance, under Robert Surcouf. St John was taken prisoner and exchanged.

St John went on to take part in the Battle of Delhi in 1803, and in the siege of Agra. He was promoted to lieutenant-general in 1805, and general in 1814.

Political career
St John was elected to Parliament in 1818 as member for Oxford and represented the constituency until his defeat at the 1820 general election two years later.

Family and issue
On 8 December 1788, St John married Lady Mary Kerr, the daughter of William Kerr, 5th Marquess of Lothian. Together, they had a son, Robert William, in 1791. Kerr died shortly after giving birth. On 6 April 1793, he married Arabella Craven, daughter of William Craven, 6th Baron Craven and Elizabeth Craven. They had three sons together; George William, born in 1796; George Frederick Berkley, born in 1797; and Henry John, born in 1798. On 14 November 1821, he married Caroline Parsons. The had two sons together, Henry Edward and Welbore William Oliver.

St John died on 19 November 1844 at the age of 78. He was by then the second most senior general in the British Army.