Arthur Southwell, 5th Viscount Southwell of Castle Mattress

(1872-1944) (1872–1944)

Parents

• Thomas Southwell, 4th Viscount Southwell
• Charlotte Mostyn

Children

• Robert Southwell, 6th Viscount Southwell of Castle Mattress
• Elizabeth Southwell
• John Southwell
• Francis Southwell
• Joan Southwell

Siblings

• Frances Southwell

Partners

• Dorothy Walrond