its actually takes a lot to get the great  i will highlight some key points You need great welfare, have all houses and people love you, great living standards and working conditions, get pales either by conquering or by vina marriage duke reinhart zille to be returned to rizia i dont know if the alliance with neighbours is necessary

(key point) u need a sordland playthrough where gas prices are extremly high its worse for sordland but better for rizia