For the UK, the Ulster bit is the Presbyterian heartland of the Plantation. Liverpool is the Irish and Catholic immigration. The islands are the Wee Frees (??). France is the Vendee – the Catholic and Royalist anti-revolution so harshly put down by the Jacobins. Andalusia was Muslim until 1492, some hangover there. The N Spain bit is, umm, the Carlists of Navarre? V. Catholic. Romania is Transylvania, presumably the Hungarian speakers holding to religion as well as language. Rome is Vatican, well, D’Oh. S Germany is what, Catholic Bavaria? N Albania is the old Venetian Stato Del Mare (spelling?).
Greece is Salonika and no, I don’t know why there.
However, from those other examples at a guess I’d say there’s some different cultural/effnik grouping which clings to religion as one of the differentiators of that grouping. Because that’s much of what’s happening elsewhere. Dunno why the Tatras are more religious than most of Poland but the Czech bit is Moravia and they’ve long had that Catholic/Protestant thing going on.
Anyone got any better ideas?
The areas that are more religious are those which are effnikly different anyway, religion being a marker of that difference? Not as a proof, a 100%, but as a tendency?