How I am doing Atharia's stuff:
Rulers (not all L&L games use King/Queen): 1 of the 4 kingdoms prefer male leaders. It has nothing to do with males being superior/better/whatever it is simply tradition and there are outlier cases of females being leaders but because it is not traditional they do have to work harder to prove themselves. Another kingdom is matriarchal, same as for males but females are the leaders and males are the outlier cases. Another kingdom, regardless of gender, leans towards eldest child being the next ruler. The final kingdom has no preference on gender or age just who has proven, to the current leader, that they should be their heir. Whether its true or not is open as they could be the worst leader ever but they have the current leader thinking otherwise.
Spouses: The rulers can have up to 3 'spouses', technically, but only 1 person is the 'true spouse' and holds the same title as the ruler (AKA King and Queen). This match is typically political. Commoners can't marry up, my hard rule on this. HOWEVER, their Consorts are the 'loves' of the ruler, they are noble or common. The 3rd Spouse is basically the Concubine (We call them Supporters). Their relationship has little involving politics or love. They are typically taken on because, for whatever reason, there is no heir. The Supporter is considered on par with, I think I said princess and prince (in the case of kings and queens) but I'd have to double check. HOWEVER, Supporters job is to give heirs to the ruler. There is no love or political matches involved. They are expected to be with the ruler only and only rulers (AKA title holders) can have a Supporter.
Relationships: There is no expectation of Chasity, no expectation of fidelity (unless that is what the couple wants), no gender preferences for who marries who (Anyone can have a child, male or female. Don't think to hard on how it would work, I don't). So, A man can marry a man, a woman can marry a woman, man to woman, trans to man, etc. Whatever gender can be with whatever gender they want.
Racism: Skin color has zero matter. two white parents could have a native child and people just know it is theirs, some how. Basically, the parents can be any RL race they want, as can the child. Sure, it might make no sense if you do how genetics work RL. Atharia has meddlesome Gods, so the 'blooded families' can be any RL race they want. NOW, there are some 'race features' specific to each kingdom, nothing to do with RL. Like one kingdom is glowy, one kingdom is Elfy, 1 kingdom is ghostly, 1 kingdom is 'orcy' (as in their skins are something like shades of blue, green and purple I believe, I forget what ranges I specifically said off hand)
These are things done with just my staff present. Some of it might change with players while interest is tested in certain aspects of the game.