Given how the contract was implemented, unless I could confirm with my own eyes that my family had received the benefits promised, I would ensure that first the chamberlain, and then the prince fell to the assassin's knife. In fact, considering the terms, I would kill the prince myself at the nearest opportunity after having informed my family to side with the invading kingdom. Feth these guys, they suck,they've enslaved a young noble woman to their whims and they need to pay.