Rodrigo was living here in January, 1482, as we learn from an instrument of the notary Beneimbene,--the marriage contract of Gianandrea Cesarini and Girolama Borgia, a natural daughter of the same Cardinal Rodrigo.

This marriage was performed in the presence of the bride's father, Cardinals Stefano Nardini and Gianbattista Savelli, and the Roman nobles Virginius Orsini, Giuliano Cesarini, and Antonio Porcaro.
The instrument of January, 1482, is the earliest authentic document we possess regarding the family life of Cardinal Borgia.

In it he acknowledges himself to be the father of the "noble demoiselle Hieronyma," and she is described as the sister of the "noble youth Petrus Lodovicus de Borgia, and of the infant Johannes de Borgia." As these two, plainly mentioned as the eldest sons, were natural children, it would have been improper to name their mother.

Caesar also was passed by, as he was a child of only six years.
Girolama was still a minor, being only thirteen years of age, and her betrothed, Giovanni Andrea, had scarcely reached manhood.

He was a son of Gabriello Cesarini and Godina Colonna.