Henry de Vere, 18th Earl of Oxford

Henry de Vere, 18th Earl of Oxford KB (24 February 1593 – June 1625) was an English aristocrat, courtier and soldier.

He was born on 24 February 1593 at Stoke Newington, Middlesex, the only son of Edward de Vere, 17th Earl of Oxford, by his second wife, Elizabeth Trentham.

At Venice in 1617 he offered to raise a body of volunteers for the service of the republic, and he exerted himself to obtain the release of his kinsman Sidney Bertie, who had fallen into the hands of the Inquisition at Ancona.

[3] This failed matchmaking laid the seeds of a future quarrel between Buckingham and Oxford, though the Villier's marriage for Frances went ahead in September 1617.

He was finally freed on 30 December 1623 at the behest of Prince Charles and Buckingham himself, 'hoping to smooth the waters before the upcoming parliamentary session'.

Francis Bacon in his disgrace asked favours in an obsequious letter which he addressed to the Earl in the month of his marriage.

He was present in June at the unsuccessful assault on Ter-heiden, in connection with the operations to relieve Breda but soon afterwards died at The Hague of fever.