A more thorough explanation:

A seignioress is a female superior or lady. This term comes from Law French and is used in historical contexts.

• The seignioress of the castle was responsible for managing the estate and overseeing the servants.
• As a seignioress, Lady Catherine had the power to make important decisions for her family and community.

These examples show how a seignioress was a woman who held a position of authority and had responsibilities similar to those of a lord or nobleman. In medieval times, women were often excluded from positions of power, but some were able to gain influence and respect as seignioresses.