Monarchical

Rukirabasaija Oyo Nyimba Kabamba Iguru Rukidi IV, King Oyo is the youngest monarch having been crowned king at the age of three and a half years old

Abdullah bin Abdulaziz Al Saud and Ramses the Great were both 90 when they died, making them jointly the oldest monarchs

Sobhuza II was the longest reigning monarch having reigned for 82 years, 254 days

Pharaoh Nebiriau II had a short reign but not as short as Prince Louis-Antoine, Duke of Angouleme, "King Louis XIX" on the throne for twenty minutes

Queen Darejan and King Heraclius II of Georgia had 23 children

Kan'yamato Iwarebiko known posthumously as Emperor Jimmu ruled Japan 660-585BC