I'm trying to find out the name and location of King Henri II of Navarre's sister who became a nun in late 1526 or early 1527. According to *The Pearl of Princesses: The Life of Marguerite D'Angouleme, Queen of Navarre* by H. Noel Williams, soon-to-be-Queen Marguerite visited Henri's sister Catherine where she had recently taken the veil at St. Preuil in Languedoc, France.

Unfortunately, there is no St. Preuil in the historic region of Languedoc, and I can't find a record that there ever was one. There is a St. Preuil farther north and west. There was (and still is) a convent, "le monast