Princes of Solofra Principi di Solofra First holder Pietro Francesco Orsini, 10th duke of Gravina Records #3 Holders Family filter On/Off 1 Pietro Francesco Orsini, 10th duke of Gravina 5 Ferdinand Bernualdo Filippo Orsini, 14th duke of Gravina * 1685 Domenico Orsini, prince of Solofra * 1765 Corrections and Updates To suggest a correction or an update. Click Here