As soon as the cardinal who has been elected gives his assent to the election, the cardinal-dean asks him what name he would wish to take. This custom of assuming a new name is very old, and has been much disputed about by writers on papal matters. The great Baronius has expressed the opinion in his _Ecclesiastical Annals_ that John XII., who was previously called Octavian, was the first to make the change, which he did probably out of regard for his uncle, who was Pope John XI. Cardinal Borgia has observed in this connection, as showing that the change of name was yet a singularity, that the pope used to sign himself _Octavian_ in matters relating to his temporal, and _John_ in those relating to his spiritual, government. Martinus Polonus started a fable that Sergius II., elected in 844, was the one who first changed his name, because known by the inelegant appellation of Pigsnout—_Bocca di Porco_; but the truth is, as Muratori says in one of his dissertations on Italian antiquities (_Antiquitatum Italic._, tom. iii. dissert. xli. p. 764), that Sergius IV. (1009-1012), and not Sergius II., had this only for a surname or sobriquet, as was commonly given in that age at Rome, but was baptized Peter. He changed his name, indeed, according to the custom then becoming established as a rule, but, as Baronius observes, not _ob turpitudinem nominis (Os porci), sed reverentiæ causa: cum enim ille_ PETRUS _vocaretur, indignum putavit eodem se vocari nomine, quo Christus primum ejus sedis Pontificem, Principem Apostolorum, ex Simone Petrum nominaverat_. It has long been usual for the new pope to take the name of the pope who made him cardinal. There have been, however, several exceptions even in these later times. In some special cases, as in the signature to the originals of bulls, the pope retains his original Christian name, but, like all sovereigns, he omits his family name in every case. There have also been exceptions to this change, and both Adrian VI. and Marcellus II. kept their own names—the only two, however, who have done so in over eight hundred years.