Henry St John, 4th Viscount Bolingbroke, 5th Baron St John

Henry St. John, 4th Viscount Bolingbroke (6 March 1786 – 1 October 1851) was the son of George Richard St John, 3rd Viscount Bolingbroke and Charlotte Collins.

Henry married Maria, daughter of Sir Henry Paulet St John Mildmay in 1812 at St George's, Hanover Square in 1812. The couple had six children - Maria Louisa (b. 1813), Anne Jane Charlotte (b. 1814), Isabella Letitia (b. 1816), Emily Arabella Jane (b. 1817), Henry (b. 1820) and Spencer (b. 1822).

Henry died on 1 October 1851 while visiting his daughter in Elgin. He was buried in the family vault at St Mary's Church in Lydiard Tregoze on 7 October 1851. He was succeeded by his son Henry

...
Wikipedia