You do not need a Pole od Spaniard to solve your question, just a bit of knowledge of history:
Both Galicias are bastardized English term for:
1) Old Latin description of a Celtic tribe Gallaecii living in that part of Spain during the Roman expansion in the last century BC.
2) Also an old Latin term of a tribe which lived there under Magyars called Kaliz which then become " slavonized" to Halicz or Galicz and other similar names. The historians are not 100 % in agreement on the history of this section of Poland/Ukraine and how the name originated. Some suggest old Tracian tribe called Galeis who moved in the late Iron Age.
