# Maria Kalergis

> Polish musician (1822–1874)

**Wikidata**: [Q2022977](https://www.wikidata.org/wiki/Q2022977)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Maria_Kalergis)  
**Source**: https://4ort.xyz/entity/maria-kalergis


## References

1. Czech National Authority Database
2. Genealogics
3. Catalog of the German National Library
4. International Standard Name Identifier
5. CERL Thesaurus
6. Faceted Application of Subject Terminology
7. Virtual International Authority File
8. SNAC
9. FemBio database
10. Internetowy Polski Słownik Biograficzny
11. Freebase Data Dumps. 2013
12. Sejm-Wielki.pl