What is "sertorius"

Sertorius is a play by Pierre Corneille on the revolt by Quintus Sertorius, created for the Théâtre du Marais of Paris for the 25 February 1662, afterwards published in July of the same year. The literary scholar George Saintsbury considered Sertorius to be "one of Corneille’s finest plays", and declared that "the characters of Aristie, Viriate and Sertorius himself [...] are not to be surpassed in grandeur of thought, felicity of design or appropriateness of language".