I need to get back what I gave Tut! How do I?

Hint 1 of 11:

You'll have to return to the pyramids at a later date.

Hint 2 of 11:

You should bring along someone who would want Charlemagne's crown.

Hint 3 of 11:

Do you know anyone who admires Charlemagne?

Hint 4 of 11:

How about Napoleon?

Hint 5 of 11:

Get him to come to Egypt.  (See Rome, 1798 AD.)