Lady Mary Margaret Stanley

(1801-1858) (1801–1858)

Parents

• Elizabeth Farren
• Edward Smith-Stanley, 12th Earl of Derby

Children

• Seymour Egerton, 4th Earl of Wilton
• Elizabeth Egerton
• Lady Alice Egerton
• Lady Katherine Egerton
• Arthur Egerton, 3rd Earl of Wilton

Siblings

• Edward Smith-Stanley, 13th Earl of Derby
• Lady Charlotte Stanley
• Lady Elizabeth Stanley

Partners

• Thomas Egerton, 2nd Earl of Wilton