Papal bull? You want papal bull?

His Holiness the Pope, Bishop of Rome and Vicar of Jesus Christ, Successor of Saint Peter, Prince of the Apostles, Supreme Pontiff of the Universal Church, Pariarch of the West, Primate of Italy, Archbishipe and Metropolitan of the Roman Province, Sovereign of the State of the Vatican City.

That's the whole deal, in English. You really should, if using it as an address, do it in Latin.