Arthur whacks mordred

King Arthur recognized Mordred in the crowd, and they charged at each other; and the two
strong and courageous knights met in battle. Mordred
struck the king first and pierced his shield, but his hauberk
was strong, and not a link of it was broken. The lance was
shattered into bits by the shock, and the king did not move
an inch. The king, who was strong and tough and
experienced with the lance, struck with such great force
that he bore Mordred and his horse to the ground in a
heap; but Mordred was not wounded, because he [242] was
well protected by his armor.

The Vulgate Cycle