Cetteus of Amiternum

Saint Cetteus of Amiternum (Ceteus, Peregrinus, Pellegrino) was bishop of Amiternum in Sabina, now San Vittorino near L'Aquila in Italy, elected in 590 in the pontificate of Gregory the Great. He was thrown into the river by the Lombards on 13 June 597 according to Wikipedia; our calendar gives the year 600. He is the patron of the city of Pescara.

According to a largely legendary Passio, the city was occupied by two Lombard captains, Alai and Umbolus. Cetteus, who refused to support the occupation, fled to Rome, but Pope Gregory convinced him to return after the Lombards promised to treat the inhabitants humanely. Then a dispute broke out between Alai and Umbolus, and Alai sided with Count Verilianus of Orte, who occupied the city at night. The inhabitants wanted to kill Alai, but Cetteus intervened and Alai was simply imprisoned. Umbolus believed the bishop was an ally of Alai and ordered his immediate execution: a large stone was tied around his neck and he was thrown from a bridge into the Aterno-⁠Pescara river; his body was buried in the church in Pescara later dedicated to him, San Cetteo, now Pescara Cathedral. Our calendar says he asked for mercy for a condemned prisoner.