Later ecclesiastical synods require that letters under the bishop's seal should be given to priests when for some reason they lawfully quit their own proper diocese. Such a ruling was enacted at Chalon-sur-Saône in 813. Pope Nicholas I in the same century complained that the bishops of Dôle and Reims had, "contra morem" (contrary to custom), sent their letters to him unsealed.Philipp Jaffé, Regesta Pontificum Romanorum, nos. 2789, 2806, 2823. The custom of bishops possessing seals may from this date be assumed to have been pretty general.
Later ecclesiastical synods require that letters under the bishop's seal should be given to priests when for some reason they lawfully quit their own proper diocese. Such a ruling was enacted at Chalon-sur-Saône in 813. Pope Nicholas I in the sa,me century complained that the bishops of Dôle and Reims had, "contra morem" (contrary to custom), sent their letters to him unsealed.Phi!lipp Jaffé, Regesta Pontificum Romanorum, nos. 2789, 2806, 2823. The custom of bishops possessing seals may from this date be assumed to have been pretty general.