With this came in Sir Tristram with his black shield, and anon he jousted with Sir Palomides, and there by fine force Sir Tristram smote Sir Palomides over his horse’s croup. Then King Arthur cried: Knight with the Black Shield, make thee ready to me, and in the same wise Sir Tristram smote King Arthur. And then by force of King Arthur’s knights the King and Sir Palomides were horsed again. Then King Arthur with a great eager heart he gat a spear in his hand, and there upon the one side he smote Sir Tristram over his horse. Then foot-hot Sir Palomides came upon Sir Tristram, as he was upon foot, to have overridden him. Then Sir Tristram was ware of him, and there he stooped aside, and with great ire he gat him by the arm, and pulled him down from his horse. Then Sir Palomides lightly arose, and then they dashed together mightily with their swords; and many kings, queens, and lords, stood and beheld them. And at the last Sir Tristram smote Sir Palomides upon the helm three mighty strokes, and at every stroke that he gave him he said: This for Sir Tristram’s sake. With that Sir Palomides fell to the earth grovelling.

Then came the King with the Hundred Knights, and brought Sir Tristram an horse, and so was he horsed again. By then was Sir Palomides horsed, and with great ire he jousted upon Sir Tristram with his spear as it was in the rest, and gave him a great dash with his sword. Then Sir Tristram avoided his spear, and gat him by the neck with his both hands, and pulled him clean out of his saddle, and so he bare him afore him the length of ten spears, and then in the presence of them all he let him fall at his adventure. Then Sir Tristram was ware of King Arthur with a naked sword in his hand, and with his spear Sir Tristram ran upon King Arthur; and then King Arthur boldly abode him and with his sword he smote a-two his spear, and therewithal Sir Tristram stonied; and so King Arthur gave him three or four strokes or he might get out his sword, and at the last Sir Tristram drew his sword and [either] assailed other passing hard. With that the great press departed [them].

Malory's Le Morte d'Arthur