Boniface IV was pope from 608 to 615. He received from the Emperor Phocas the Pantheon at Rome, which was converted into a Christian church and renamed the church of St. Mary and All Saints.
... for any period of time without a legitimate basis of authority.
The first to have the title of "Tyrant" was Pisistratus in 560 BC.
In modern times Tyrant has come to ...