The second Book hath two Conclusions: One, that S. Peter was Bishop of Rome, and there dyed: The other, that the Popes of Rome are his Successors. Both which have been disputed by others. But supposing them to be true; yet if by Bishop of Rome bee understood either the Monarch of the Church, or the Supreme Pastor of it; not Silvester, but Constantine (who was the first Christian Emperour) was that Bishop; and as Constantine, so all other Christian Emperors were of Right supreme Bishops of the Roman Empire; I say of the Roman Empire, not of all Christendome: For other Christian Soveraigns had the same Right in their severall Territories, as to an Office essentially adhaerent to their Soveraignty. Which shall serve for answer to his second Book.