The most famous would be Cleopatra. Others include Akhenaten, Ramesses ll, hatshepsut, Nefertiti, Seti l etc...
The rulers of ancient Egypt were called pharaohs.
The rulers of ancient Egypt were called "pharohs".
The rulers of Ancient Egypt were known as the Pharaohs.
The rulers of Ancient Egypt were the pharaohs.
The rulers of ancient Egypt had the title Pharaoh.
ancient Egyptian rulers were called Pharaohs.
This question can not be answered because you have not been specific about WHICH old Kingdom you are referring to.
Pharoahs
there were many egyptian rulers
a family of rulers
Acient Egypt.
The absolute ruler of Egypt was the Pharaoh.