Counts of Casamassima Conti di Casamassima First holder Giannantonio Donato Acquaviva d' Aragona, 9th duke of Atri * c. 1490 Records #3 Holders Family filter On/Off 1 Giannantonio Donato Acquaviva d' Aragona, 9th duke of Atri * c. 1490 2 Giangirolamo Acquaviva d' Aragona, 10th duke of Astri * 1521 Belisario Acquaviva d' Aragona, 1st duke of Nardò * 1464 Corrections and Updates To suggest a correction or an update. Click Here