Richest provinces in the game

[Zenicetus]

I'm only getting 468 from a maxed out merchant on Timbuk gold in my HRE campaign :/ The Moors own it and I have trade rights.

Speculation: Could the quality of the trade path from the resource to your capital make a difference?

I think the trade path and trade rights are background income, separate from the merchant's own income which is more dependent on distance to the capital, monopoly bonus, intrinsic resource value etc. Also, road quality (AFAIK) only impacts trade income for roads within your own provinces. Poor quality Moorish roads would affect the level of their background trade income, not yours. At least I think that's how it works. Maybe someone who has poked into the files can verify that.

[knoddy]

Wow my best was London in my english camp and it was only gettign about 5.5k fully developed with a merchants hq :( i dunno how u people get 9-10k. in Rome Athens was always best in my camps, once i owned all of greece and asia minor, i easily netted 10-15k with a decent govenor there :D

[Quillan]

In my Byzantine campaign, I was getting just over 7k a turn from Constantinople, with a Merchant Guild HQ and a merchant's quarter built in the city, plus a dockyard and a docklands. That's 2k+ a turn higher there. I'm pushing 6k a turn from Venice in my current Venetian campaign, with the guild HQ, 2nd level merchant bank, merchant quarter, shipwright and docklands (no gunpowder just yet). I've never seen sea trade that high in M2TW yet. Hell, I never saw sea trade that high between Halicarnassus and Rhodes in RTW! That's some serious coinage flow there.