The chief sources for the Stellinga are the Annales Xantenses, Annales Bertiniani (written by Prudentius of Troyes), Annales Fuldenses (written by Rudolf of Fulda), and the Historiae of Nithard.
At Speyer late in 841, Lothair and his young son Lothair II met the leaders of the Stellinga uprising, among other Saxon notables who were loyal to him.