The pope's pie

[goscho]

In the middle ages the pope have a 10% of every land income from the catolic lands.
Is this implemented in the game?

[Suppiluliumas]

Tithes were assigned to local eclesiatical authorities much as rents were assigned to lay authorities. They represented revenue for Abbeys, Monasteries, Chapter Houses and the like. Any money sent to Rome would have been filtered through so many layers of the church hierarchy that it would only have amounted to a small percentage of the original tithe even in the best of circumstances. And no, the game does not implement this idea.

[solypsist]

in a way, it can be reflected by having to pay the Pope to sanction a crusade.

[goscho]

I think in the middle ages this income was big part of the pope's money.
I know from history, when the frenchs were in conflict with the pope, they desided to disable exporting of gold and silver from France. So the pope was unable to take the income from France to Rome.

[Hurin_Rules]

Interesting question. The incident to which you are referring occured when King Philip the Fair cut off the flow of money out of France. What did this money come from? Well, I'm not sure. The papacy owned lands in France directly, and thus got the revenues from it, and it also sold things like indulgences, commutations of penance, etc. etc. How much of the tithes from local dioceses did the pope get? Not much, percentage wise, I would think; but overall this could have been a considerable sum. As well, the pope encouraged the payment of Peter's Pence, a direct payment from monarchies to the papacy.

Remember also that the papacy owned extensive lands, primarily in Italy (the "Patrimony of St. Peter"), and that it could have gotten a larger percentage of the tithes from these areas than from areas outside its direct administration.