I haven't read that before and I'm not totally sure if it is true... I remeber to read that when FrancescoII asked for Marie's hand for marrying her, the young Marie didn't have her mestruation but Duchess Ludovika didn't want to let this oportunity of arranging a good marriage for her daughter and while she received education for become a good queen, she also received a disgusting threatment for having her menstruation that was to takie baths with nearly boling water (that hurted her skin) and also leeches (that was quite common in the past)
Was it true? In this case poor Marie :-S