Quote Originally Posted by Shogun_01
well this can only be done by an experienced modder... any out there think it can be done?
So basically what you want is:

A system similar to the senate, but where in times of need the senate can directly control its under faction.

A system of marriage, where you can marry your daughters

A system of inheriting the kingdom.

The only way you could reach something close to that would be scripting, and even then I think it would be impossible. Sorry to let you down, but without actually changing the game code it really is very unlikely.