Brothel revenue was essential to the growth of Roman Catholic Church in the Middle ages. Even some of the higher officials embraced it.

-The Bishop of Winchester in the Middle Ages used to direct rooms to prostitutes. It was so well-known that people will go and visit and like, they called it "Winchester geese".

And that was just a start.

-Grand Council in Venice in the 15th century declared that the prostitution was indispensable to the world. 

-Queen Johanna of Nei Pori actually opened up a brothel right next to the Pope’s residence, and she gave the local nunnery control of that particular brothel.

You might think that the Pope would have a problem with the prostitution in the neighborhood, but you’ll be wrong. 

-At the rise of Renaissance, Pope 6th taxed the prostitution. Pope Alexander rented out rooms and brothels for prostitutes.

-How does the church take that money? Well, they developed all kinds of work-arounds to finally get the money, but not compromise their own beliefs too strongly. At times the prostitution keep the money if she uses it for charitable causes. At times, the church said the prostitutes, you can give us the money, if they repent first. They just put it like this. The money got to the right place. It always did.