Before the union of Upper and Lower Egypt, kings wore crowns of different design, to show which part of Egypt they ruled. The red crown was worn in Lower Egypt. The white crown was worn in Upper Egypt. Later, kings of the whole of ancient Egypt wore a combination of the two crowns, called a Pschent.
When a Pharaoh died, their treasure was buried with them. The Pyramids were tombs for several early Pharaohs. Many later Pharaohs were buried in the Valley of the Kings. They were mostly men but some were women like Cleopatra and Nefertiti. Pharaohs were considered to be half-man and half-god.
The first pharaoh was Narmer, though he did not use the term. The Egyptians believed their pharaoh was the god Horus. Pharaohs had several wives but only one wife was queen.