https://www.frisiacoasttrail.com/single-post/2018/03/02/Frisian-mercenaries-in-the-Roman-Army?fbclid=IwAR2rG1H4uj0Rl6JJYrinnFsKa3PhgNPKFkQZ0_oVkoziI2ZLmHKTtmHT52g
this popped up on Facebook (although from 2018 originally). Certainly of interest to the likes of myself so thought I would share