31 years
the old Egyptian cultural practices
The Han Dynasty ruled for 400 years.
The Egyptian fourth dynasty Pharaoh Khufu (reigned 2589-66BC)
15 years
60 years
Egyptian dynasty considered pharoahs to be reincarnation of gods
menes
He was an Egyptian Pharaoh that ruled in the 12th dynasty. He ruled for about 29 years. He ruled during 1991 - 1962 BC
There were 15 ancient Egyptian Pharaohs named Ptolemy, who ruled from the Ptolemaic dynasty after the death of Alexander the Great in 323 BCE. The most famous among them is Ptolemy I Soter, the founder of the dynasty, and Ptolemy XIII, who was involved in the political drama with Cleopatra. The Ptolemaic dynasty is known for its Hellenistic influences and the blending of Greek and Egyptian cultures.
There was no certain amount of time that an Egyptian dynasty lasted. Each dynasty and dynasty location had its own set of years. Some lasted up to 120 years.
300 years
King Tut