Henry St John, 5th Viscount Bolingbroke, 6th Viscount St John

British Viscount (1820–1899)

Parents

• Henry St John, 4th Viscount Bolingbroke, 5th Baron St John
• Maria St. John-Mildmay

Children

• Vernon Henry St John, 6th Viscount Bolingbroke, 7th Viscount St John
• Charles Reginald St. John
• Henry Mildmay St. John
• Ellen Rose St. John

Siblings

• Isabella Letitia St. John
• Spencer Mildmay St. John
• Maria Louisa St. John
• Emily Arabella Jane St. John
• Anne Jane Charlotte St. John

Partners

• Mary Emily Elizabeth Howard