Then Sir Percivale departed from King Mark. So when he was departed King Mark bethought him of more treason: notwithstanding King Mark granted Sir Percivale never by no manner of means to hurt Sir Tristram. So anon King Mark sent unto Sir Dinas the Seneschal that he should put down all the people that he had raised, for he sent him an oath that he would go himself unto the Pope of Rome to war upon the miscreants; and this is a fairer war than thus to arise the people against your king. When Sir Dinas understood that King Mark would go upon the miscreants, then Sir Dinas in all the haste put down all the people; and when the people were departed every man to his home, then King Mark espied where was Sir Tristram with La Beale Isoud; and there by treason King Mark let take him and put him in prison, contrary to his promise that he made unto Sir Percivale.