Arlemont was a Manticoran citizen and an officer of the Royal Manticoran Navy.
Holding the rank of Lieutenant, she served as the Chief Engineer of the destroyer HMS L'Imperieuse. When her ship was attacked by the People's Navy heavy cruiser PNS Rienzi, she led the surviving crew in one of the cutters. When the other cutter, commanded by the ship's XO, was destroyed, Arlemont tried to ram the enemy, but was killed when her vessel was destroyed by Havenite laser fire as well. (HHA1.2: AGT)