And it could "overturn" official name in use in my place "Portugalija" where insisting on that "-galija" part is crucial to be "official in our language. "Galija" is in the same time our name for "Gaul country" prior to Caesar's conquest... so maybe not so "Portugalija" if theory you mentioned stands... nonetheless, it was Gaulish region (Iberian peninsula) hence some interpretations... regarding rivers, even more interesting is river Evros (or Evro without Greek "s") which might be clear "tween" of Iberian Ebro as Greeks use "v" instead of "b" in many instances.... Evros is btw that river Maritsa so our history of medieval expansion and life could fit into title "from Ibar to Evros" ; ...was surprised by presence of haplogroup "I" exactly at Zaragoza region, adding to mysteries of some old times.... likers of Cedltic og Gaulish issues - more for fun and as last taught - should know that very, very angry Serb (for example) is likely to say "I'm gonna drink your blood" - but mind that things Romans wrote about Scordiscii might be just their propaganda and that when you look at paragraph "culture" and it contains only sentence "they were drinking blood and sacrificing prisoners" it sound a bit shallow as culture 
of course it is not all about Scordisci and whole "Gaulish" organisation that once lived here, just Roman sources....nonetheless, like "Iberia", Spain and Portugal, also when it comes to story of age of discoveries and I liked it once passionately, read a lot about it... have even personal story as I, clearly remember that, was one of the victims of confusion by two films about Columbus from 1992, me and my best friend back in that year... we wanted to watch in cinema (yes, cinema life was once big thing and there was no piracy nor internet) with Depardieu, directed by Scott but we ended buying tickets and watching film that was on programme in the same times, with Brando as Torquemada (and for which he was nominee for "worst supporting role") without even knowing that we watch wrong film... tomorrow in school we wanted to impres geography (i think) professor, relatively young female, and said how we watched that film about Columbus and she asked "Was Depardieu good in role?" and we said "Which Depardieu?!" and there was laugh... few days later we watched other film, "right one" and we said to each other "first one was better"
... remember some things, that's one of them, from boyhood so clear.... anyway, liked the story as kid, whole discovery era... today it is accepted that it was "shameful" page of "Iberian" history but I'd be alright to have country famous for oppressing Indians once insted of country without fame, famous for oppressing" Albanians, North Macedon or whatever, humoristically said so do not drammatise, modern PC-fanatics ;here it is, wikipedia pic (good enough) of queen Helen/Jelena "of Anjou" husband king Uroš I (since him all Serb kings used name Uroš and Stefan in their names), son of Ana Dandola... her is monastery Gradac, usual "Rascian style" church. I and French historian "disscussed" this one as tower is fairly unusual for our architecture.... but I might disappoint some thinking that it is some clear western influence (while general Romanic influence and some of other styles, Gothic etc. are generally present in mix) by French queen and half-Italian king - it might be that tower was added exactly during emperor Dušan as he enlarged church and that monastery during his rule more than half century later... it was Dušan who experimented with western influences even more and is known to have had own church (unsurrvived) with unique Venetian style mosaics and figure of ruler on tomb, for example... hence that French person was intrigued but could not make some conclusions from that and Gradac main church, except that he thinks she was related to Anjou, both region and families paternally and even king Richard himself, maybe even Charlemagne
.... have fun, if you know something about it, just like other mysteries from our past, contact me here .... ; always grateful
.....I'm not some traveller, but even I faced "Latin American" passion sometimes in life so - you know better than me probably and how much more touchy they can be than Europeans - i felt bad for "liking" Spanish and Portuguese conquests publicly, considering how passionate and touchy some of them can be... musical intermezzo as pardon 