Hyacinthi
Martyrological notice
The historical Roman Martyrology commemorates Hyacinthi on 17 August. The Latin notice identifies the record as confessor.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Sancti Hyacinthi, ex Ordine Praedicatorum, Confessoris, qui decimo octavo Kalendas Septembris obdormivit in Domino.