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Vasili III died on December 3, 1533 at the age of 54.
Arthur III died on December 26, 1458 at the age of 65.
Gordian III died on February 11, 244 at the age of 19.
Mustafa III died on January 21, 1774 at the age of 56.
Eberhard III died on July 2, 1674 at the age of 59.
Murat III died on January 15, 1595 at the age of 48.
Makarios III died on August 3, 1977 at the age of 63.
Albert III died on March 11, 1486 at the age of 71.
Valentinian III died on March 16, 455 at the age of 35.
Mehmed III died on December 22, 1603 at the age of 37.
Rainier III died on April 6, 2005 at the age of 81.
William Loeb III died on September 14, 1981 at the age of 75.