Columbia always read as the generic "West" to me (eg. Rhine Labs, named after one of Europe's most important rivers, is based there) as opposed to the more narrowly themed countries. Siracusa is unabashedly the Mafialand parts of Italy, Victoria doesn't much hide its Britishness (no word on tea and crumpets tho), Laterano seems to be the old pre-Risorgimento Papal States plus prolly the more functioning bits of Italy (though their religion seems to be mostly local), Kazimierz is blatantly the old Polish-Lithuanian Commonwealth, Ursus is Imperial Russia (loosely, sounded like constitutional rather than absolutist monarchy) etc.