# Johann Buttjer

> German navy officer and world war II submarine commander (1912-1945)

**Wikidata**: [Q16929931](https://www.wikidata.org/wiki/Q16929931)  
**Source**: https://4ort.xyz/entity/johann-buttjer


## References

1. [Source](http://www.ubootarchiv.de/ubootwiki/index.php/Johann_Buttjer)
2. Die deutschen U-Boot-Kommandanten (1 ed.)