Rubuta ci gaba ga wannan sakin layi - Gnaeus Calpurnius Piso (fl. 1st karni BC) babban jami'in Roman ne kuma sanata. Ya kasance mai bin al'adun gargajiya kuma ya yi adawa da masarautar Triumvirate ta farko, kuma daga baya Julius Kaisar. Ya yi yaƙi da Kaisar a Yaƙin basasa na Roman da kuma ɗansa, Octavian, a Yaƙin Triumvirate na Biyu
; a lokuta biyu a bangaren da ya yi hasara.