 Cicero, though not personally involved in the conspiracy, later claimed Antony's actions sealed Caesar's fate as such an obvious display of Caesar's preeminence motivated them to act.Originally, the conspirators had planned to eliminate not only Caesar but also many of his supporters, including Antony, but Brutus rejected the proposal, limiting the conspiracy to Caesar alone.With Caesar preparing to depart for Parthia in late March, the conspirators prepared to act when Caesar appeared for the senate meeting on the Ides of March (15 March).