Lucius Alexander is the younger brother of Sophitia and Cassandra Alexandra, the brother-in-law of Rothion, the son of Achelous and Nike Alexandra, and the maternal uncle of Pyrrha and Patroklos. Not much is known about him, aside from being mentioned in Sophitia's and Cassandra's profiles. In Soul Blade, he was referred to as Ruches.
Lucius followed in his father's footsteps, becoming a baker.
He came to hold a grudge against his brother-in-law Rothion for keeping Sophitia and Pyrrha's disappearance a secret from Patroklos. Lucius later passed on his baking skills to his nephew.