Which preposition to use with arquebusier

at Occurrences 1%

But all the time they had those arquebusiers at their heels constantly firing upon them, so that at the last charge once more the Good Knight had his horse killed under him.

of Occurrences 1%

The commissioner of police, the officer of the Chatelet, the archers, crossbowmen, and arquebusiers of the city had repaired to the palace to form the escort; but when they presented themselves at the prison to take Berquin, he told them that he had appealed to the king, and that he would not go with them.

Which preposition to use with  arquebusier