You and your sister are young beautiful noble women. Your father has for a ling while employed and worked with a mercenary, jack taylor. They've both grown in wealth and power from this friendship, and jack has even become a lord. So to tie the two noble houses together and have male heirs to take over his lands, your father marries your sister to jack.

Only, your sister has absolutely refused to perform her duty, and many a screaming match has resulted from it. But no matter what, your sister remain less childless and it's been years since they've married.

But your father refuses to let her embarrass the family and damage the relationship he's built up so long. So in order to get those heirs and stay in lord Jack's good graces, he appeals to the king and church to let you marry jack as well