Which preposition to use with halberdiers

at Occurrences 4%

The corpse was laid at the foot of the Giant's Stairs, while the trembling halberdier at the head of the flight, scarce commanded himself sufficiently to maintain that air of firmness which was exacted by discipline and professional pride.

in Occurrences 1%

she pursued aloud"the gallant courtier who has as many mistresses as I have halberdiers in my bodyguard, and who creates an atmosphere of gladness about him, be he where he may; was he as gay and gorgeous as his wont?" "Your Majesty is probably not aware," replied Madame de Conti with increased formality, "that M. de Bassompierre has quarrelled with one of my relatives; a circumstance which deprived me of the honour of his presence.

of Occurrences 1%

The celebrated mouths of the lions were passed, and they were walking swiftly along the open gallery when they encountered a halberdier of the ducal guard.

Which preposition to use with  halberdiers