John saw the Dragon standing on the seashore and a Beast rose up out of the sea having seven heads and ten horns and on his horns he had ten crowns and on his heads was the name of blasphemy and his body was like a leopard and his feet were like the feet of a bear and his mouth was like that of a lion and the Dragon gave him his power and his seat was a throne and great authority.
This doesn't mean that the Dragon gave him his own throne, but he gave him power, a throne and great authority.