After the deacon reveals the conspiracy to Charlemagne, the plotters are captured, and Pepin is "cruelly scourged" and banished to a poor monastery—Notker claims that it was the monastery of St. Gall, although Pepin was almost certainly sent to the monastery of Prüm.
After the deacon reveals the plot to Charlemagne, the conspirators are detained, and Pepin undergoes severe punishment before being exiled to a small monastery—Notker states that this was the monastery of St. Gall, but it is more likely that Pepin was sent to the monastery of Prüm.