Members of this group were depicted in fresco paintings added to the chapel of Mut in the Luxor Temple. A speech praising members of this group venerates the season of spring and commemorates their accession on the first day of March. An octopylon arch shows a member of this group at the Battle of Satala defeating Narseh, which led to the first Peace of Nisibis. New palace guard units were created for members of this group who equated themselves with (*) Jupiter and Hercules. Iconography emphasising this group’s unity is shown on an arch in Thessaloniki. The cities of Trier, Sirmium, and Milan were capitals for this group’s members Constantius I, Galerius, (10[1])and Maximian. Ending the Crisis of the Third Century, (10[1])for 10 points, name this governmental system created by Diocletian, the rule of (10[1])four Roman emperors. ■END■