need answer to riddle PLEASE HELP

I need help with this riddle. It has two parts If ANYONE knows the answer PLease help.

theres two parts to riddle

What/Who is revered by the most powerful throne on earth, cursed by the oldest, and misunderstood by the newest?

I was commonly known as a friend and a son of the previous. Since my death I have travelled the Mediterranean and my bones now lay in which city?