Did Caesar know about the conspiracy or was he totally ignorant?(history not play)

Caesar would  have done well to have been suspicious; but
it is doubtful that he was aware of the conspiracy to kill him. Julius Caesar was very
popular with both his own army and the populace of Rome, as he spent large sums of his
own money by sponsoring fights between gladiators and wild animals. He crossed the
Ribicon and marched on Rome because he was aware of his immense popularity in the city.
His enemies consisted of conservatives and the old Patrician families who considered him
a tyrant. His style of rule--centralized government under a single ruler was odious to
them. He appears to have been too arrogant and self assured to have even suspected a
conspiracy. It might be a reach to say that he was "totally ignorant," but he was not
aware of any imminent danger.