Counts of Cassano Conti di Cassano First holder Giannantonio Donato Acquaviva d' Aragona, 9th duke of Atri * c. 1490 Records #1 Holders Family filter On/Off 1 Giannantonio Donato Acquaviva d' Aragona, 9th duke of Atri * c. 1490 Corrections and Updates To suggest a correction or an update. Click Here