@Vee
the princess (FL) was captured as a prisoner of war and married off to a general (ml) of the country that invaded and conquered her Kingdom- the general was the one who actually did the invading and conquering so there was bad blood there- her twin brother managed to escape. The twins share a bond where the brother is able to use super powerful magic but at the expense of his sister's life force that's why she had always been weak and bedridden. Part of the deal is that any child she has will be given to the king who obviously intends to raise it as the next attack dog