You do understand that the major churches in Rome belong to the Patriarchs right. The Popes church is the Lateran. St. Peters belongs to Constantinople, etc. You can't actually give away relics that already belong to someone else. For good or ill the mutual excommunication was lifted by Paul VI.
I never said pre VII it is Not me who wrote the idiotic claim that Francis was abandoning the Papacy because he gave a few bone fragments away ( like other Popes have done)