Which king became king when he was six years old?
It was Pharaoh Pepi II Neferkare, who had the longest reign of any monarch in history. He became 100 years old, 94 years as Pharaoh.
David was around 70 when he died. (2 Samuel 5:4-5) Thirty years old was David when he became king. For forty years he ruled as king. In He′bron he ruled as king over Judah for seven years and six months; and in Jerusalem he ruled as king for thirty-three years over all Israel and Judah. 2Sa 5:4-5 KJV David was thirty years old when he began to reign, and he reigned forty years. (5) In…
George III became King on October 25, 1760 when his father, George II died. His formal coronation was not until September 22, 1761. He was only 22 when he became King and he reigned for almost sixty years. Only Victoria was on the throne longer, for sixty-four years, though currently Elizabeth II, now ruling for fifty-six years, is closing in.
In the beginning he is at least five years old going on six. By the time Simba's exiled he is likely very close to six or over. Simba spends in the least four years in exile, which makes Scar 10+ years old in the end of the film. His mane is fully grown already in the beginning and in real life, a lion's mane is fully grown at the age of five, not before.