Grummore Grummursum

A "good knight of Scotland" who became a companion of the Round Table, being listed among the would-be-healers of Sir Urre. This is about all Malory tells us of him, and in the second reference his name is given as "Sir Gromere Grummer's son".

I do not think he should be identified with Gromer Somer Joure. Grummore Grummursum is a minor knight.