Hemison
Morgan le Fay's paramour who pursued Sir Tristram and was fatally wounded, attested in 1 source.
Sir Hemison is attested in Le Morte d'Arthur as the paramour of Morgan le Fay, whose fatal pursuit of Sir Tristram occupies two chapters of Book IX. When Tristram takes Morgan's enchanted shield, "there came the knight that held Queen Morgan le Fay, his name was Sir Hemison, and he made him ready to follow Sir Tristram" (Le Morte d'Arthur, Book IX, Ch. XLI).
Hemison's confidence proves unfounded. He dismisses Cornish knights with contempt -- "Fie on him, coward, said Sir Hemison, for I wist never good knight come out of Cornwall but if it were Sir Tristram de Liones" (Le Morte d'Arthur, Book IX, Ch. XLI) -- unaware that the knight he pursues is Tristram himself. Committed to Morgan's cause, he declares "For your sake, said Sir Hemison, I shall slay him" (Le Morte d'Arthur, Book IX, Ch. XLI). The joust is brief: "they rushed together as it had been thunder, and Sir Hemison brised his spear upon Sir Tristram, but his harness was so good that he might not hurt him" (Le Morte d'Arthur, Book IX, Ch. XLI).
The aftermath is economically told. His varlet brings him to the castle "with great pain," where "Sir Hemison fell down dead" (Le Morte d'Arthur, Book IX, Ch. XLII). Morgan buries him and has inscribed on the tomb: "Here lieth Sir Hemison, slain by the hands of Sir Tristram de Liones" (Le Morte d'Arthur, Book IX, Ch. XLII).
Appears in: Beings, Entities in Le Morte d'Arthur, British Tradition