I loved your book. Except...on P. 327, you say of Catharina, "she hoped Anna didn't ask about the Immaculate Conception, a concept that only the most learned clergy understood." You must mean the virgin Birth. The doctrine of the Immaculate conception was not yet invented: it is the idea that Mary herself was conceived in the usual way, but did not get original sin on her soul as a result. I think it was proclaimed doctrine in the 18th century. check you Mss with a Catholic for the next volume.
B Haner

While the Immaculate Conception was indeed not proclaimed Catholic doctrine until the 18th century, the concept itself (pardon the pun) and its accompanying contraversy were debated in the church as early as the 8th century, with French churchmen providing a significant part of the discussion.

For more info see the online Catholic Enyclopedia.

How do you get to the Catholic Encylopedia (spelled closer to correct).

You should post a link, or at least the html address to any site you reference.

Here's the website for info on the immaculate conception in the online Catholic Encyclopedia. Also Wikipedia has a good article on the subject.