Trade routes over deep sea?

[HoreTore]

Yeah, i agree. In my migration game, my whole empire is in the levant and asia minor except for venice which i still keep. The citiy's income though is horrible, lower than 1700, even though realistically, the city would have been able to traight valuble luxary goods to the levant making crazy amounts of money

Have you checked it for corruption? with faraway provinces, corruption really is a pain, it usually takes more than half your income...

[TevashSzat]

Havent checked, but i remember that my total corruption for my empire is just about 3400 which is not too high for 22 provinces

[JCoyote]

Well corruption wouldn't matter, you can SEE trade routes snaking out from ports when they are active, and see them disappear when blockades go up.