At the king's request, Columbanus wrote a letter to Pope Boniface IV on the controversy over the Three Chapters—writings by Syrian bishops suspected of Nestorianism, which had been condemned in the fifth century as heresy.
La cererea regelui, Columban scrie o scrisoare către Papa Bonifaciu al IV referitoare la controversa celor trei capitole — scrieri ale unor episcopi sirieni suspectați de Nestorianism, erezie condamndată în secolul V d.Hr.