This #letter, no doubt, was written to delegate some (if not all) of his attributions to his colleague, who will become coadjutor or substitute bishop!

Indeed, the preamble to cause 7 of #Gratian’s #Decree, illustrated here, speaks of what a bishop overwhelmed by a long #illness should do:

"When a bishop overwhelmed by a long illness begs to have another bishop substituted for him, the Pope responds favourably to his prayers and grants him what is requested."