On 5 February 1904, she married her first cousin once removed, Henry Fitzalan-Howard, 15th Duke 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 Winifred Alice Fitzalan-Howard (1914–2006)Upon the death of her father in 1908, she, as the eldest child and daughter, inherited the Lordship Herries of Terregles.
She died at her home Kinharvie House near New Abbey.
A Requiem Mass was said at St Mary's in New Abbey before interment in the Norfolk burial vault at Arundel Castle in Sussex.