Dame Marie dite de Thieulaine, dame héritière de Wargny le Grand

NOTE: Use of the French term héritière in the title indicates that she was the inheritor or heiress of this land and title in her own right. We often do this when a woman brings her own inheritance of land and title into the marriage (called in sui generis in legal terms), to indicate that she inherited in her own right and did not just acquire a title by marriage. In the middle ages, many women were the carriers of important inheritances and therefore their marriages, often arranged by powerful men like trading cards, brought the men who "acquired" them great power and wealth.

https://www.genealogieonline.nl/genealogie-brabantica/I194952.php

https://gw.geneanet.org/claudie23?lang=en&iz=106&p=marie&n=pottes