12 years old
king tut's brother died at age 40
king john married a 12 year old girl and he replaced hes brother because hes brother was supposed to be king not king john
His brother, Edmund, died in 1932 when Karol was 12 years of age.
he was 49 he was 49
He was heir to the throne. His father died when he was 5 and his brother had already died. He was 9 years old when he began his reign.
King Henry VIII's older brother Prince Arthur, The Prince of Wales died on 2 April 1502 at the age of 15.
John Barton King died on October 17, 1965 at the age of 91.
King John of England died on October 19, 1216 at the age of 49.
King John I of France died on November 20, 1316 at the age of 0.
King John I of Portugal died on August 14, 1433 at the age of 76.
King John I of Castile died on October 9, 1390 at the age of 32.
King John of Bohemia died on August 26, 1346 at the age of 50.