Originally Posted by Victrix
Latin was very popular in Hungary and Poland as these are Roman Catholic countries where itís often still used in church service.
Latin in these countries also had a renewed following in the classicist revival in the 19thC.
The popular use of religious/patriotic slogans in Latin on sword blades predates the 19th cent. revival. You see this going all the way back into the 17th cent.
As has been pointed out in previous posts, the blade in question was not necessarily made in either Poland or Hungary. And it's been mentioned that manufacture of sword blades for the mass market tended to be centered in a few areas, with export sales to other regions and countries. Solingen was of course a major location, and it was in a region that was heavily affected by the struggles and after-effects of the Protestant Reformation. As you may recall, Martin Luther and contemporaries emphasized contemporary, local idiom (German) in preference to Latin for religious tracts and the conduct of church services.
Terje Norheim, in the article "A Euro-Japanese Sword in the National Museum in Copenhagen" ( Vaabenhistoriske Aarboger XVI )
discusses the badly written Latin inscriptions on a saber blade thought to be of Dutch or German manufacture, 17th cent.