Helen McCrory was 39 in Harry Potter and the Half-Blood Prince when she played the character 'Narcissa Malfoy'.
That was over 15 years ago in 2009.
In 2021 she died aged just 52, starring in 48 films in her career, 21 of those after Harry Potter and the Half-Blood Prince was first released. If she were alive today she would be 55.
In Harry Potter and the Half-Blood Prince, I think Helen McCrory looks: