Who was the youngest Pharaoh to rule Ancient Egypt?

Tutankhamun, commonly referred to as King Tut, was an ancient Egyptian pharaoh who was the last of his royal family to rule during the end of the 18th Dynasty (ruled c. 1332 – 1323 BC in the conventional chronology) during the New Kingdom of Egyptian history. His names—Tutankhaten and Tutankhamun—are thought to mean "Living image of Aten" and "Living image of Amun", with Aten replaced by Amun after Akhenaten's death.

Tutankhamun was the youngest pharaoh to rule over ancient Egypt. He was between eight and nine years of age when he ascended the throne and became a pharaoh, taking the throne name 'Nebkheperure'. He reigned for about nine years. During Tutankhamun's reign, the position of Vizier had been split between Upper and Lower Egypt.