Henry de Vere, 18th Earl of Oxford

Henry de Vere
18th Earl of Oxford
Oil on panel (unknown artist; c. 1610–1615) National Portrait Gallery, London
18th Earl of Oxford
Tenure24 June 1604 – June 1625
PredecessorEdward de Vere, 17th Earl of Oxford
SuccessorRobert de Vere, 19th Earl of Oxford
BornHenry de Vere
(1593-02-24)24 February 1593
Stoke Newington, Middlesex, England
DiedJune 1625(1625-06-00) (aged 32)
The Hague Netherlands
Buried25 July 1625
Westminster Abbey, London
Noble familyde Vere
SpouseLady Diana Cecil (m. 1624)
FatherEdward de Vere, 17th Earl of Oxford
MotherElizabeth Trentham, Countess of Oxford
OccupationCourtier, soldier

Henry de Vere, 18th Earl of Oxford KB (24 February 1593 – June 1625) was an English nobleman, courtier, and soldier. He inherited one of England’s oldest earldoms in 1604, joining a prominent aristocratic family with centuries of influence in English politics and society. De Vere served at the court of King James I, participating in ceremonial events, military campaigns, and diplomatic missions, reflecting the close connection between noble and royal service in early modern England. He was created a Knight of the Bath (KB) and married Lady Diana Cecil, though the couple had no children. Upon his death in 1625, the earldom passed to his second cousin, Robert de Vere, as the 19th Earl of Oxford.