70 years, 10 months and 27 days old
11 years old.
Maria Montessori was born on August 31, 1870 and died on May 6, 1952. Maria Montessori would have been 81 years old at the time of death or 141 years old today.
80 years old
Maria Montessori died on May 6, 1952 at the age of 81.