I have to agree with Flydude here, looking at Bologna, I've found the same. The numbers do add up nicely. Admin is included in the total income, and corruption is substracted from that. Result is the net income that is shown under the city name, and as net income in the city overview.
About the King's Purse, after a quick survey through my save games, I think it has to do with the number of (grand)sons of the royal family.
In 5 save games in follows the pattern of 500 florins per son (own or married) of the king and the heir.
Some examples:
-In our case we have a king and 2 sons, = 3*500 = 1.500
-In my Milanese save Duke Catelano does not have sons, but his brother and heir has 2 sons. 4 male characters in the ruling family account for a King's purse of 2.000 florins, which indeed it is.
-In my French save, King Louis has 1 son and heir, one grandson, the king himself, for a King's purse of 1.500
Bookmarks