What queen died at 16?

Queen Anne of Brittany, who became queen consort of France through her marriages to Charles VIII and Louis XII, is often remembered for her tragic life, but she did not die at 16. Instead, it was Queen Mary I of England, who died at the age of 42. If you're referring to a queen who actually died at a young age, that would be Queen Wilhelmina of the Netherlands, who lived until 1890. However, she was not a queen who died young, but rather ascended the throne at a young age. Please clarify if you meant a different queen.