Which preposition to use with illyrians

of Occurrences 1%

The Illyrians of Scodra were rendered tributary to Rome; Demetrius of Pharos, who had passed over from the service of Teuta to that of the Romans, was installed, as a dependent dynast and ally of Rome, over the islands and coasts of Dalmatia; the Greek cities Corcyra, Epidamnus, Apollonia, and the communities of the Atintanes and Parthini were attached to Rome under mild forms of symmachy.

on Occurrences 1%

Preparations for War Chalcis was occupied with Achaean, and the province of Orestis with Epirot, forces: the fortresses of the Dassaretae and Illyrians on the west frontier of Macedonia were occupied by the troops of Gnaeus Sicinius; and as soon as the navigation was resumed, Larisa received a garrison of 2000 men.

Which preposition to use with  illyrians