# Castillo de San Marcos

> building in Sanlúcar de Guadiana

**Wikidata**: [Q18482124](https://www.wikidata.org/wiki/Q18482124)  
**Source**: https://4ort.xyz/entity/castillo-de-san-marcos-q18482124


## References

1. Digital Guide to the Cultural Heritage of Andalusia
2. [Wiki Loves Monuments monuments database. 2017](https://tools.wmflabs.org/heritage/api/api.php?action=search&format=json&srcountry=es&srlang=es&srid=RI-51-0007853)
3. Virtual International Authority File
4. datos.bne.es
5. Andalusian Institute of Historical Heritage