Cyrilli
Martyrological notice
The historical Roman Martyrology commemorates Cyrilli on 14 February. The Latin notice identifies the record as bishop and confessor.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Ibidem depositio sancti Cyrilli, Episcopi et Confessoris; qui, una cum sancto Methodio, similiter Episcopo et fratre suo, cujus dies natalis octavo Idus Aprilis recensetur, multas Slavicas gentes earumque Reges ad fidem Christi perduxit. Horum tamen Sanctorum festivitas Nonis Julii celebratur.