Meaning in the sources
Not establishedMeaning: “rule, authority” + “castle”
No etymology text in the cited sources.
Sources for this account (4)
- Wikidata Q137569697CC0-1.0 · retrieved 2026-10-15
- Wiktionary: WalpurgisCC-BY-SA-4.0 · retrieved 2026-10-15
- Polish Wiktionary: WalpurgisCC-BY-SA-4.0 · retrieved 2026-10-14
- Wiktionary: WalpurgaCC-BY-SA-4.0 · retrieved 2026-10-15

