Complex sentence: In 1211, Pope Innocent III denied to confirm the agreement of Archbishop John of Esztergom and Archbishop Berthold of Kalocsa on the transfer of the claim, and he declared that it is only the Archbishop of Esztergom who is entitled to crown the King of Hungary.
Split into simpler sentences: In 1211, Pope Innocent III denied to confirm the agreement of Archbishop John of Esztergom and Archbishop Berthold of Kalocsa, on the transfer of the claim. The Pope declared that it is only the Archbishop of Esztergom who is entitled to crown the King of Hungary.