So we briefly touched on earlier the relational power between the Papacy and the Emperor TTL, but I think it’s worth looking at now - - in the kind of geopolitical context we’ve been talking about, how is the papacy likely to develop in the 13th Century? By the time we get to the early years of the 14th Century, I’d say, if nothing else, it’s pretty unlikely we’d see a relocation to Avignon. So depending on how we answer this question, and assuming we still get the natural disasters of the 14th Century (the 1315 Famine, the Black Death in 1347, etc) - - what does this mean for the evolution of Western Christendom during this timeframe?
Well for now I can try to make a very approximate analysis ( I will remedy this later ) the first thing that will certainly change will be the relationship of power between the Pope and the Roman aristocracy ( gathered in the Senate ), with the latter probably supported by the imperials, we will be able to continue to see the pontiff eventually being ousted from Rome in alternating phases ( taking temporary refuge in neighboring villages, such as Anagni and Tivoli, although I do not completely rule out a possible escape of the pontiff towards the imperial court, in case the situation in Rome was totally out of control ) and at contrary when he manages to get the better of the nobility, they will be the ones to hide in the fortified villages in the city countryside ( the Roman castles, including the famous Palestrina dei Colonna ) with various clashes between the two factions ( both within the Aurelian walls and beyond outside them ) certainly the expansionist push towards Romagna, the Marche and Spoleto will be considerably weakened, in favor of the municipalities and imperial feudal lords or even of Sicily, the Papacy itself will be subject to important internal developments ( the push for greater internationalization of the curia, it will still happen like Otl, after all it would also be supported by the Emperor himself, given that it expands the possibilities of seeing one of his candidates elected, without the need to force the election ( creating an antipope ), probably instead of a " Frenchization " on large scale of the curia like Otl, perhaps we will see a continuation of the series of "German" Popes ( as it was in the 11th century, naturally alternating with numerous Italians and some other nationalities ), for the rest I see it as very difficult for the Pope to obtain fiefdoms outside Italy as happens in Otl ( even if technically there would be the conditions for this, without implying a sort of similar Avignon captivity ) in finally the Crusader movement will continue to be very important ( given the success of the 3rd Crusade, which demonstrated incontrovertibly what happens when " the two swords of Christianity " collaborate with each other )