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THE LETTER TO SILVIO SAVELLI.
By September 15 Cesare was back in Rome, the richer in renown, in French favour, and in a matter of 40,000 ducats, which is estimated as the total of the sums paid him by France and Spain for the support which his condotta had afforded them.
During his absence two important events had taken place: the betrothal of his widowed sister Lucrezia to Alfonso d'Este, son of Duke Ercole of Ferrara, and the publication of the Bull of excommunication (of August 20) against the Savelli and Colonna in consideration of all that they had wrought against the Holy See from the pontificate of Sixtus IV to the present time.

By virtue of that Bull the Pope ordered the confiscation of the possessions of the excommunicated families, whilst the Caetani suffered in like manner at the same time.
These possessions were divided into two parts, and by the Bull of September 17 they were bestowed, one upon Lucrezia's boy Roderigo, and with them the title of Duke of Sermoneta; the other to a child, Giovanni Borgia (who is made something of a mystery) with the title of Duke of Nepi and Palestrina.
The entire proceeding is undoubtedly open to grave censure, since the distribution of the confiscated fiefs subjects to impeachment the purity of the motives that prompted this confiscation.

It was on the part of Alexander a gross act of nepotism, a gross abuse of his pontifical authority; but there is, at least, this to be said, that in perpetrating it he was doing no more than in his epoch it was customary for Popes to do.

Alexander, it may be said again in this connection, was part of a corrupt system, not the corrupter of a pure one.
Touching the boy Giovanni Borgia, the mystery attaching to him concerns his parentage, and arises out of the singular circumstance that there are two papal Bulls, both dated September 1, 1501, in each of which a different father is assigned to him, the second appearing to supplement and correct the first.
The first of these Bulls, addressed to "Dilecto Filio Nobili Joanni de Borgia, Infanti Romano," declares him to be a child of three years of age, the illegitimate son of Cesare Borgia, unmarried (as Cesare was at the time of the child's birth) and of a woman (unnamed, as was usual in such cases) also unmarried.
The second declares him, instead, to be the son of Alexander, and runs: "Since you bear this deficiency not from the said duke, but from us and the said woman, which we for good reasons did not desire to express in the preceding writing." That the second Bull undoubtedly contains the truth of the matter is the only possible explanation of its existence, and the "good reasons" that existed for the first one are, no doubt, as Gregorovius says, that officially and by canon law the Pope was inhibited from recognizing children.