# A.E.I.O.U.

> symbolic device used by Habsburg emperor Frederick III and subsequently

**Wikidata**: [Q257546](https://www.wikidata.org/wiki/Q257546)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/A.E.I.O.U.)  
**Source**: https://4ort.xyz/entity/a-e-i-o-u


## References

1. Freebase Data Dumps. 2013