Ranuccio Farnese (1509-1529)
Ranuccio Farnese was the natural son of Alessandro Farnese by Silvia Ruffini, born before his father was elected pope as Paul III. His siblings were Pier Luigi, Paul and Costanza.
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Wikipedia
Ranuccio Farnese was the natural son of Alessandro Farnese by Silvia Ruffini, born before his father was elected pope as Paul III. His siblings were Pier Luigi, Paul and Costanza.