Setei (karne ya 6 - 597 hivi) anatajwa kama askofu wa Amiterno (leo San Vittorino, katika mkoa wa Abruzzo, Italia) au wa Aternum (leo Pescara) ambaye aliuawa kwa kutoswa mtoni amefungiwa jiwe kubwa shingoni. Tangu kale anaheshimiwa kama mtakatifu mfiadini. Sikukuu yake huadhimishwa tarehe 13 Juni. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko [1] http://www.santiebeati.it/dettaglio/90550 Martyrologium Romanum Nicholas Everett, Patron Saints of Early Medieval Italy AD c.350-800 (PIMS/ Durham University Press, 2016), pp. 104–123. Nicholas Everett, 'The Passion of Cetheus of Pescara and the Lombard Invasion of Italy. With a diplomatic edition of Passio Cethei based on Venice, Biblioteca Marciana lat. Z 356”, Hagiographica 22 (2015), 79-132.