Simproniani na wenzake Klaudio, Nikostrati, Kastori na Simplisi (walifariki kwenye mto Sava, Panonia, leo nchini Kroasya, 306 hivi) walikuwa wachongamawe (isipokuwa Simplisi) waliouawa katika dhuluma ya Dola la Roma kwa sababu walikataa kuchonga sanamu ya mungu Eskulapi. Tangu kale wanaheshimiwa na Wakatoliki na Waorthodoksi kama watakatifu wafiadini. Sikukuu yao huadhimishwa tarehe 8 Novemba. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Martyrologium Romanum Wikimedia Commons ina media kuhusu: Simproniani na wenzake The Four Crowned Martyrs November 8, the Four Crowned Martyrs, with images of them and of Santi Quattro Coronati and the Chapel of Pope St Sylvester I Four Crowned Saints (or Four Crowned Martyrs) and relief at base of tabernacle, Orsanmichele Santi e beati: Santi Quattro Coronati (Kiitalia)