# Gregorio Martínez Sierra

> Spanish editor, theatre director and writer (1881–1947)

**Wikidata**: [Q1137438](https://www.wikidata.org/wiki/Q1137438)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Gregorio_Martínez_Sierra)  
**Source**: https://4ort.xyz/entity/gregorio-mart-nez-sierra


## References

1. Virtual International Authority File
2. BnF authorities
3. Czech National Authority Database
4. International Standard Name Identifier
5. Faceted Application of Subject Terminology
6. CiNii Research
7. MusicBrainz
8. SNAC
9. Encyclopædia Britannica Online
10. International Music Score Library Project
11. IMDb
12. Internet Broadway Database
13. Brockhaus Enzyklopädie
14. Gran Enciclopèdia Catalana
15. Spanish Biographical Dictionary
16. Freebase Data Dumps. 2013
17. CONOR.SI
18. Autoritats UB