The Morte Darthur by Sir Thomas Malory

(Northwestern University Press Edition of Parts Seven and Eight, p. 74)

So sir Lancelot encountered with sir Gawain, and there by force sir Lancelot smote down sir Gawain and his horse to the earth. And so he smote down sir Agravain and sir Gaheris, and also he smote down sir Mordred, and all this was with one spear. Then sir Lavain met with sir Palomides, and either met other so hard and so fiercely that both their horses fell to the earth. And then were they horsed again. And then met sir Lancelot with sir Palomides, and there sir Palomides had a fall.

The Acts of King Arthur and His Noble Knights, by John Steinbeck, from the Winchester Manuscripts of Thomas Malory & other Sources, p 24.

Sir Ulfius's horse was killed under him, but he put his shield before him and continued to fight on foot. Duke Estance of Cambenet set upon Ulfius to kill him, but Sir Brastias saw his friend in danger and singled Estance out and the two ran together with such force that both of them were struck down and the horses' knees burst to the bone and both men lay stunned on the ground. Then Sir Kay with six knights drove a wedge into the enemy until they were met by the eleven lords, and Gryufflet and Sir Lucas the Butler were unhorsed. Now the battle became a confused melee of wheeling, charging, striving knights, and each man chose an enemy and engaged him as if in single combat.

Sir Kay saw Gryfflet fighting on fast and quickly. He struck down King Nentres and took his horse to Grylfflet and mounted him. With the same spear, Sir Kay struck King Lot and wounded him. Seeing this, the young King of a Hundred Knights ran at Sir Kay and unhorsed him and took his horse to King Lot.