matron
A respected older woman who often manages or oversees others.
A matron is a mature, dignified woman, often someone who manages an institution or holds a position of authority and respect. In older British hospitals and boarding schools, the matron was the senior nurse or caretaker who ran the medical wing, making sure students stayed healthy and rules were followed. Think of her as combining the roles of head nurse, household manager, and guardian: someone both caring and no-nonsense.
The word carries a sense of respectability and experience. A matron is an adult woman who has earned respect through age and wisdom. In some contexts, like formal ceremonies, a matron of honor is a married woman who serves as the bride's chief attendant, similar to a maid of honor but with married status.
At formal events, society pages might describe an elegantly dressed older woman as a society matron, someone established and respected in her community. The word can sometimes sound old-fashioned, as though it belongs to an earlier era when social roles were more rigidly defined. But it still appears in schools, prisons, and other institutions where someone needs to provide oversight and authority.