Mary Stewart, Duchess of Richmond
Mary Stewart, Duchess of Richmond and Duchess of Lennox (1622–1685), formerly Lady Mary Villiers, was the daughter of the 1st Duke of Buckingham.
On 8 January 1634, at the age of 12, she married the 15-year-old Charles, Lord Herbert, eldest son of the 4th Earl of Pembroke and 1st Earl of Montgomery, but was widowed in 1635 when her young husband died of smallpox. 
They had two children:
- Esmé Stewart, 2nd Duke of Richmond and 5th Duke of Lennox (1649-1660)
- Lady Mary Stewart, married the 1st Earl of Arran (1651-1668)
After the death of her son, sometime before 1664, Mary married Colonel Thomas Howard (d. 1678) about whom little is known.
Maureen E. Mulvihill has built a case for Mary Villiers as the author of the poems published under the pseudonym Ephelia, including Female Poems...by Ephelia (1679).
Depiction in art
Mary Villiers, later Duchess of Richmond and Lennox, with her cousin Charles Hamilton, Lord Arran, as Cupid, about 1636, by Van Dyck.
|Wikimedia Commons has media related to Mary Villiers, Duchess of Richmond and Lennox.|
- "Thumbprints of Ephelia" by Maureen E. Mulvihill, Princeton Research Forum, in ReSoundings, with biography of Mary Villiers
- Royal Geneaology Database, University of Hull
- Gordenker, Emilie E.S.: Van Dyck and the Representation of Dress in Seventeenth-Century Portraiture, Brepols, 2001, ISBN 2-503-50880-4
- "Portrait of Mary Villiers Lady Herbert of Shurland (1622-1685) 1636". Philip Mould Historical Portraits.