Gwendolen Fitzalan-Howard, Duchess of Norfolk

Gwendolen Mary Fitzalan-Howard (née Constable-Maxwell), Duchess of Norfolk (11 January 1877 – 28 August 1945) was a daughter of Marmaduke Constable-Maxwell, 11th Lord Herries of Terregles, and his wife, Angela (née Fitzalan-Howard). On 5 February 1904, she married her first cousin once removed, the 15th Duke of Norfolk and became Duchess of Norfolk. The couple later had four children:
Lady (Mary) Rachel Fitzalan-Howard (1905–1992)
Bernard Marmaduke Fitzalan-Howard, 16th Duke of Norfolk (1908–1975)
Lady Katherine Mary Fitzalan-Howard (1912–2000)
Lady Winefride Alice Fitzalan-Howard (1914–2006)
Upon the death of her father in 1908, she, as the eldest child and daughter, inherited his title as 12th Lady Herries of Terregles.