Monument to Pope Paul III (1549-77) by Guglielmo della Porta (Alessandro Farnese, Canino near Viterbo, b.1468/r.1534-49) The monument to Pope Paul III (r. 1534-49) is the work of Guglielmo della Porta (c. 1515-77). It was the first monument to a pope to be erected in the basilica. The statues of Justice and Prudence are said to be portraits of the pope's beautiful sister Giulia and his mother Giovanna Caetani.
'Justice' & 'Prudence'
The statue of Justice was originally naked. However, following the instructions of a later pope, who, while admitting that justice should keep nothing hidden, insisted on the statue being clothed.