Gaudentius

Saint Gaudentius was the first archbishop of Gniezno in Poland and a brother of Saint Adalbert of Prague. He reposed around 1004, though historians are not sure of the date and suggest a range between 1006 and 1022.

He was originally called Radim. He was a son of the Bohemian nobleman Slavnik; some sources call him a younger brother of Adalbert, others a half-⁠brother. In 989 he went to Rome with Adalbert and became a monk at the monastery of Saints Boniface and Alexis on the Aventine, taking the name Gaudentius. He accompanied Adalbert on the journey to Prussia in 997, on which Adalbert was slain by pagans. Gaudentius escaped the massacre. Back in Rome, he told what had happened to Abbot John Canaparius, who wrote the life of Adalbert, and he laboured for Adalbert's canonization.

In the year 1000 he was made the first archbishop of Gniezno. In the Czech lands he is commemorated as Saint Radim, and in the Orthodox Church he is commemorated on 5 January (new style). He is a saint of the undivided Church.