He who controls a Queen can make functionally equivalent copies of every Princess and Princess-baby in the Queen’s lineage. They have the skeleton keys to your ‘secure’ kingdom and could at any time decide to become a fraud factory and dish out copies of your keys to whomever they fancy.
In a sense, it's worse than that, because a "queen" can actually sign (correctly or not) any "princess-baby" in any "lineage".
In a sense, it's worse than that, because a "queen" can actually sign (correctly or not) any "princess-baby" in any "lineage".