Myles of the Laundis
This promising young knight was treacherously slain by Sir Loraine le Savage while on his way to Arthur’s court with his lady, Eleine, King Pellinore’s daughter.
Eleine screamed for help, but King Pellinore, passing by, was intent in a quest and would not stop. When her lover died, Eleine slew herself with his sword, and Pellinore found them both dead.
Source
Le Morte Darthur | Sir Thomas Malory, 1469-1470