Try Duenna
The Spanish elderly woman has been hired by the family to care for and supervise the young girls as their governess and chaperone. She will provide guidance, education, and support to ensure the well-being and proper upbringing of the girls under her care. Her responsibilities may include teaching manners, overseeing their activities, and serving as a role model for the children.
(CHAPERON or CHAPERONE, from the French "hood", later "protector") Someone, normally an adult, who accompanies and supervises a group of younger people.
A duenna is an older woman, usually a relative, who escorts a young woman on a supervised activity with a young man. (This is a custom native to Spain and Portugal.)
A woman well advanced in years
Elderly Woman Behind the Counter in a Small Town was created on 1993-10-19.
Billie Gibson played as the elderly woman in the bath .
Billie Gibson played as the elderly woman in the bath .
Particularly nice biscuits?
A chaperone is a woman who accompanies a younger woman to make sure that there is no hanky-panky (sex) and that she her reputation is unharmed. The activity is called chaperoning. (It's seldom done nowadays in Western countries).
Anything. It depends.
I would find an elderly woman
An elderly man or woman