Adelberti
Martyrological notice
The historical Roman Martyrology commemorates Adelberti on 25 June. The Latin notice identifies the record as bishop and confessor. The source places the commemoration at In Hollandia.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
In Hollandia sancti Adelberti Confessoris, qui fuit discipulus sancti Willibrordi Episcopi.