Robert Devereux, 3rd Earl of Essex

The Earl of Essex
Portrait of Robert Devereux 3rd Earl of Essex
Born(1591-01-11)11 January 1591
Died14 September 1646(1646-09-14) (aged 55)
Alma materMerton College, Oxford
TitleEarl of Essex
Spouse(s)Frances Howard
Elizabeth Paulet
Parent(s)Robert Devereux, 2nd Earl of Essex
Frances Walsingham

Robert Devereux, 3rd Earl of Essex, KB, PC (/ˈdɛvəˌr/; 11 January 1591 – 14 September 1646) was an English Parliamentarian and soldier during the first half of the 17th century. With the start of the Civil War in 1642, he became the first Captain-General and Chief Commander of the Parliamentarian army, also known as the Roundheads. However, he was unable and unwilling to score a decisive blow against the Royalist army of King Charles I. He was eventually overshadowed by the ascendancy of Oliver Cromwell and Thomas Fairfax, and resigned his commission in 1646.