Get Joan of Arc, play as the French, win a lot of territories, and often check you generals chart (the sword on the territories map). She will be ranked 7 and her Command, Piety, and Loyalty will be maxed out.
Activate the following cheats by entering the corresponding codes:
CHEAT FUNCTION - CHEAT CODE All your provinces get gold - .mefoundsomeau. All your provinces get silver - .mefoundsomeag. All your provinces get copper - .mefoundsomecu. All your provinces get iron - .viagra. Full map - .matteosartori. 1,000,000 Florins - .deadringer. Fast construction - .worksundays. All units and buildings unlocked - .badgerbunny. Play as the rebels; cannot be undone - .conan.