Mauricius, Mawrene, Morys
The Baron of Cahors under King Arthur who fought for Arthur in the war against Rome. Maurice was part of the escort taking Roman prisoners to Paris. The prisoner train was attacked by the Romans, and Maurice was killed.
Malory also places him among Arthur’s forces at the battle of Bedegraine.
Sources
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138
Alliterative Morte Arthure | c. 1400
Le Morte Darthur | Sir Thomas Malory, 1469-1470