# Greifenstein

> castle in Thal, canton of St. Gallen, Switzerland

**Wikidata**: [Q19957914](https://www.wikidata.org/wiki/Q19957914)  
**Source**: https://4ort.xyz/entity/greifenstein-q19957914


## References

1. Swiss Inventory of Cultural Property of Regional Significance, February 2017
2. Swiss PCP Inventory 2023