The emperor then sent a delegation to see Gregory, headed by Archbishop Ansgar of Hamburg-Bremen, to question the pope on the events which led to Louis’s removal from the throne by Lothair. Gregory swore an oath that his intentions were honourable, and that he had always sought to achieve a peaceful solution to the conflict between Louis and his sons. Accepting Gregory’s word, the envoys returned to Louis. After this failure in dabbling in imperial politics, Gregory by and large focused his attention for the rest of his pontificate in dealing with internal church matters.