@B in Europe history, mono was in forced on everyone but the king. The king is supposed to be mono too but it wasn't in forced for several reasons. Some cheated on their queens by having their lovers move too. One murdered all of his wives. Children were murdered to weaken the wife's position so the king could marry another woman. One prince had an arranged marriage (peace treaty) but had s** with a widow woman that was 3x his age. Divorce was an option, but there was a lot of deaths.