What sources do we have to validate her birthdate as 4 July 1670?
Boucher says: "Elisabeth was baptized in the Sint-Maartens church there [Courtrai] on August 31, 1670, with Charles Loridon and Ludovica (Louise) Pittens as godparents. In the same church on July 4, 1677 Francois-Jean was christened"
Coertzen simply gives 1670
Unless someone has a Source, I'm going to assume that the 4 July is a confusion with her brother's christening date, and remove it.
