[quote=The Silent Type]
Eranor, Iroden, Myration and Cryos, You four are all but required to go through me if you wish to trade with each other, and I do possess the means to enforce that requirement to a degree. Now, onto something more peaceful. I believe I export things your nations require, and you export things I require, so can we agree you're all paying to trade through and with me?
[/quote]

Depends on the price for trading through you. we could easily just go through the neutral zone east of you.
I'll trade with you if a canal is built for that river on your eastern border. I can build myself, I just require a discount for when i trade on it.