A notable situation occurred when, at the festival of the Lupercalia in February 44 BC, Mark Antony offered Caesar the crown as king of Rome. He rejected the offer dramatically, but with obvious reluctance. The idea of a king still remained intolerable to the Romans.
Many senators though suspected it only a matter of time until Caesar should accept such an offer, or that he simply would choose to rule as dictator forever as a quasi-king of Rome.
They saw their suspicions confirmed at hearing that a suggestion was to be put to the senate that Caesar should adopt the title of king for use outside of Italy. More so support for the idea was growing, if not in Rome itself, then with the people of Italy.
And with the appointment of new senators by Caesar, the senate as a whole was becoming more and more am instrument of Caesar's will. A conspiracy was formed by a group which included senators of the highest influence, some of them even Caesar's personal friends.
The organizers of the plot was Gaius Cassius Longinus and Marcus Junius Brutus were pardoned Pompeians, but the majority of their accomplices were former officers of Caesar.
Caesar never took precautions for his personal safety. At a meeting of the senate on the Ides of March (15th March) 44 BC, they gathered round him on the pretext of urging a petition and then stabbed him to death.