Mary de Vere

Mary de Vere
Baroness Willoughby de Eresby
Lady Hart
Bornc. 1554
Died24 June 1624(1624-06-24) (aged 69–70)
Noble familyDe Vere
Spouse(s)Peregrine Bertie, 13th Baron Willoughby de Eresby
Sir Eustace Hart
IssueRobert Bertie, 1st Earl of Lindsey
Peregrine Bertie
Henry Bertie
Katherine Bertie
Vere Bertie
Roger Bertie
An other Bertie son
FatherJohn de Vere, 16th Earl of Oxford
MotherMargery Golding

Mary de Vere (c. 1554 – 24 June 1624) was a 16th-century English noblewoman. The daughter of John de Vere, 16th Earl of Oxford, and his second wife Margery Golding, she married Peregrine Bertie, 13th Baron Willoughby de Eresby. The couple lived with their seven children in Grimsthorpe Castle in Lincolnshire. Following Bertie's death, Lady Willoughby married Sir Eustace Hart. She died on about 24 June 1624.