From StrategyWiki, the free strategy guide and walkthrough wiki

Enter one of the following codes at the campaign map to activate the corresponding cheat function.

Cheat	Effect
.mefoundsomeau.	All your provinces get gold
.mefoundsomeag.	All your provinces get silver
.mefoundsomecu.	All your provinces get copper
.viagra.	All your provinces get iron
.matteosartori.	Full Map
.deadringer.	1,000,000 Florins
.worksundays.	Fast Construction
.badgerbunny.	All units and buildings unlocked
.unfreeze.	Produce an heir the next turn
.conan.	Play as the Rebels; Cannot be undone