Nazarius and Celsi Ambrosius
Martyrological notice
The historical Roman Martyrology commemorates Nazarius and Celsi Ambrosius on 10 May. The Latin notice identifies the record as martyr and apostle. The source places the commemoration at Mediolani Inventio.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Mediolani Inventio sanctorum Martyrum Nazarii et Celsi, in qua beatus Ambrosius Episcopus corpus sancti Nazarii recenti adhuc sanguine conspersum reperit, atque ad Basilicam Apostolorum transtulit, una cum corpore beati Celsi pueri, quem idem ipse Nazarius nutrierat, et Anolinus, in Neronis persecutione, simul cum eo feriri gladio jusserat quinto Kalendas Augusti; quo die festivitas gloriosi eorum martyrii celebratur.