There are many saints named Mary. Please be specific.
We do not know his age at death but he was probably in his 60s.
Lucy was martyred at the age of 21 and became a saint at that time.
There is no written record of the death of Saint Anne. She probably died of natural causes, complications of old age.
Saint Columba died on June 9, 597 at the age of 75.
He probably died of complications of old age.
At what age did St. Bernadette do what? You need to explain yourself otherwise the question is meaningless.
Camille Saint-Saëns died on December 16, 1921 at the age of 86.
Saint Charles Borromeo died on November 3, 1584 at the age of 46.
Saint Thomas Aquinas died on March 7, 1274 at the age of 49.
Saint Thérèse of Lisieux died on September 30, 1897 at the age of 24.
Saint John of the Cross died on December 14, 1591 at the age of 49.
Saint Oliver Plunkett died on July 1, 1681 at the age of 51.