

They can also be built on the African continent (Trans-Saharan) trade route.

However, only the controller of an important Silk Road county can build a trade post there, which is destroyed if the county changes hands, and trade posts outside the Silk Road can only be built by patricians of a merchant republic, for whom they are usually the primary source of income. The tax income from cities and the trade income from all trade posts within the associated trade zone is also boosted depending on its size, up to a limit of 50% for cities and 100% for trade posts in a large trade-post zone in Silk Road counties, an income boost also applies to castles and temples. Trade posts in coastal or important Silk Road counties can generate a large trade income at a very low construction price. Taxes paid by vassals can be seen in the liege's "Vassals" tab, and totals for each vassal government type are shown in the liege's demesne screen.

Also, a vassal pope or antipope will only pay you taxes if he has a positive opinion of you.
