Toward the end of Amenhotep III's reign the priesthood at Thebes begins to grow more and more powerful. Their role in Egyptian religion and swelling treasuries place them in a position to even begin rivaling the Pharaoh in power. Amenhotep and his son will seek to undo this.
To further weaken the old priesthood Akhenaton decides to abandon Thebes and build a new capital at Amarna. This new capital, in a very unlikely and harsh location, is entirely planned out in order to celebrate the Pharaoh and his new faith.