Here's why:
* Title: Pharaoh is a title, like "King" or "Queen." Titles are typically capitalized when used before a person's name.
* Specific Person: When referring to a specific Pharaoh, like "Pharaoh Akhenaten," the word "Pharaoh" acts as part of their name and is capitalized.
* General Reference: Even when referring to the office of Pharaoh in general, it's still often capitalized.
Example:
* "Pharaoh Akhenaten was a ruler of ancient Egypt."
* "The Pharaoh held absolute power within the kingdom."