A strange sequence of events...

[Lord_hazard]

Well you said you took Genoa, maybe the Pope really like the factions you just opend a can of whupass on. Especially if the pope originated from that land.
Then again he may just be Johnny English in disguise and trying to enforce his notion of the only ting France should be allowed to host is an invasion:)

[dumas]

After being forgiven, your status with the pope is still very low. So if you were at war with any other christian nations or had a unit in the pope's land, that may have been enough for you to be excommunicated again. If not, I have no idea.