 Prior to King Henry's departure for the Battle of Agincourt in 1415, the ringleaders of the "Southampton Plot" — Richard, Earl of Cambridge, Henry Scrope, 3rd Baron Scrope of Masham, and Sir Thomas Grey of Heton — were accused of high treason and tried at what is now the Red Lion public house in the High Street. They were found guilty and summarily executed outside the Bargate.
