The council opened on 27 May 359, It was hosted in the Cathedral of Santa Colomba, no longer extant, with Arian supporters worshipping at a chapel, traditionally reported to be a downtrodden area near the
Arch of Augustus, known as , renowned for its prostitutes. of which 40 were pro-Arian at the start of the council.
Gaudentius, the first
Bishop of Rimini, participated in the Council; he was against Arianism. with seventeen other bishops, Gaudentius retreated to a nearby town, in another, he was stoned to death for
perduellio. Gaudentius was martyred on 14 October 360. He was killed in a marshy area south of the city's
Arch of Augustus, which became known as (Lake of the Martyr); it is believed to be the etymology of Via Lagomaggio and Rimini's eponymous suburb. The account of Gaudentius' participation in the Council of Ariminum is considered inconsistent with earlier legends about his life. ==Aftermath==