i am playing as the haysadan. I have been able to recruit Gaesatae as mercenaries in asia minor, but i was curious if i would ever be able to recruit the from a regional barracks? i control the "celtic" city in asia minor and i think i have maxed out the regional recruitment options, iirc the best i can get is celtic heavy cav.

so i was wondering if there was any province that would allow me to recruit Gaesatae as the haysadan?