> Maria Gavrilovna of "The Butterfly" Pushkin was already young: "She was in her 20th year."
Juliet’s mother at the time of the events described in the play was 28 years old. Juliet is 14.
The Balzac age, the time of a woman’s decay, came at 30 years old.
Ivan Susanin at the time of the feat was 32 years old (he had a 16-year-old daughter at the time of extradition).
Dostoevsky’s “Crime and Punishment” was 42 years old.
Anna Karenina at the time of death was 28 years old, Vronsky - 23 years old, the old husband of Anna Karenina - 48 years old.
Cardinal Richelieu was 42 years old at the time of the siege of the La Rochelle fortress described in The Three Musketeers.
But here is the phrase from the notes of the 16-year-old Pushkin: "A 30-year-old man entered the room" (it was Karamzin)

Pushkin was born in 1799. Karamzin in 1766... And when did Pushkin see 30-year-old Karamzin, 3 years before his birth?
Regarding the old woman in the novel, the direct text says that she was about 60 years old.
Other "facts" about the same degree of persistence