Which preposition to use with imperators

for Occurrences 3%

He advanced first to the river Visurgis and subsequently as far as the Albis, but nothing of any moment was accomplished then, although not only Augustus but also Tiberius was dubbed imperator for it, and Gaius Sentius, governor of Germany, received triumphal honors.

by Occurrences 2%

It was not a wise thing to take his life; since the Constitution was already subverted, and somebody would reign as imperator by means of the army, and his death would necessarily lead to renewed civil wars and new commotions and new calamities.

in Occurrences 2%

Saepius et communitèr tenet Sedem Imperator in palatio vrbis Imperialis Suse.

of Occurrences 2%

Often he used to say: "My position is that of master of the slaves, imperator of the soldiers, and first citizen among the rest."

through Occurrences 1%

One is irresistibly reminded, in reading of this meeting, of that little outcast band from Judea which ultimately prevailed over Cæsar Imperator through its mighty quality of faith.

Which preposition to use with  imperators