The rites of the Salii marked the springtime beginning of the war season in March and its closing in October. The structure of the patrician sodalitas, made up by the two groups of the Salii Palatini, who were consecrated to Mars and whose institution was traditionally ascribed to Numa (with headquarter on the Palatine), and the Salii Collini or Agonales, consecrated to Quirinus and whose foundation was ascribed to Tullus Hostilius, (with headquarter on the Quirinal) reflects in its division the dialectic symbolic role they played in the rites of the opening and closing of the military season. So does the legend of their foundation itself: the peace-loving king Numa instituted the Salii of Mars Gradivus, foreseeing the future wars of the Romans while the warmonger king Tullus, in a battle during a longstanding war with the Sabines, swore to found a second group of Salii should he obtain victory.