Sir John Oldcastle to Henry Carey's son George, second Lord Hunsdon, and the actors regained their previous patronage. Soon after the premier of Shakespeare's Oldcastle/Falstaff in 1597–98, literary and dramatic works began to appear that defended the reputation of the historical Oldcastle; scholars argue that the muse that inspired these works was Henry Brooke, 11th Baron Cobham. In 1601 a narrative poem, "The Mirror of Martyrs," by one John Weever, was published; it praises Oldcastle has a "valiant captain and most godly martyr." And two years earlier, in 1599, the play "Sir John Oldcastle" was performed by the Admiral's Men, the main theatrical
Sir John Oldcastle it is generally thought, because of political pressure: the historical Oldcastle was not only a Protestant martyr, but a nobleman with powerful living descendants in Elizabethan England. These were the Lords Cobham: William Brooke, 10th Baron Cobham (died 6 March 1597), was Warden of the Cinque Ports (1558–97), Knight of the Order of the Garter (1584), and member of the Privy Council (1586–97); his son Henry Brooke, 11th Baron Cobham, was granted the paternal post of Warden of the Cinque Ports upon his father's death, and made a Knight of the Order of the Garter in 1599. Even more so,