I wrote, > ... I couldn't find the exact page, but it would > be something like this page: > > https://www.wikidata.org/wiki/Q54180
Hmmm, maybe that is the exact page. That page does show the ISO 3166-2 code as "PL-PM". So, if that's the correct page and the English is given as "Pomeranian Voivodeship", why is CLDR giving the English as "Federal Capital Territory"? The Wikidata page was last edited/updated on 2018-08-25. The CLDR page doesn't include last updated information. Perhaps it hasn't been updated in a while.

