Diana Rigg was 30 in On Her Majesty's Secret Service when she played the character 'Tracy Di Vicenzo'.
That was over 54 years ago in 1969.
In 2020 she died aged 82, starring in 49 films in her career, 40 of those after On Her Majesty's Secret Service was first released. If she were alive today she would be 85.
In On Her Majesty's Secret Service, I think Diana Rigg looks: