# Joseph-Haydn-Realgymnasium
**Wikidata**: [Q100430579](https://www.wikidata.org/wiki/Q100430579)  
**Source**: https://4ort.xyz/entity/joseph-haydn-realgymnasium


## References

1. archINFORM
2. [Source](http://anno.onb.ac.at/cgi-content/anno-plus?apm=0&aid=jsm&datum=1875&page=46)
3. [archINFORM](https://www.archinform.net/service/wd_aipro.php)