Philip Sidney the was the eldest son of Sir Henry Sidney and Lady Mary Dudley, the sister of Robert Dudley, 1st Earl of Leicester, the longtime favorite of Queen Elizabeth I. He was close to his own younger sister, Mary, who became Countess of Pembroke, and dedicated his 1580 work "The Arcadia" to her. In 1583, Philip was knighted and married Frances Walsingham, daughter of the queen's spymaster and Secretary of State, Sir Francis Walsingham. Sir Philip Sidney was considered one of the Elizabethan Age's most romantic and noble figures. Well-known during his life for his poetry and gallantry as a courtier and soldier, he became even more famous after his death in the Battle of Zutphen at age 31. He was mourned by generations as the epitome of English chivalry and courage.