Its Definetely found in Martin Luther, although I don't know if this was his opinion all throughout his life.
After this, Eccius and Emser, with their fellow-conspirators, began to instruct me concerning the primacy of the Pope. Here too, not to be ungrateful to such learned men, I must confess that their works helped me on greatly; for, while I had denied that the Papacy had any divine right, I still admitted that it had a human right. But after hearing and reading the super-subtle subtleties of those coxcombs, by which they so ingeniously set up their idol—my mind being not entirely unteachable in such matters—I now know and am sure that the Papacy is the kingdom of Babylon, and the power of Nimrod the mighty hunter. Here moreover, that all may go prosperously with my friends, I entreat the booksellers, and entreat my readers, to burn all that I have published on this subject, and to hold to the following proposition:
ON THE BABYLONISH CAPTIVITY OF THE CHURCH