# William IX, Count of Poitiers

> first son of Henry, Duke of Normandy (later Henry II of England) and Eleanor of Aquitaine (1153-1156)

**Wikidata**: [Q719148](https://www.wikidata.org/wiki/Q719148)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/William_IX,_Count_of_Poitiers)  
**Source**: https://4ort.xyz/entity/william-ix-count-of-poitiers


## References

1. The Peerage
2. [Source](https://pantheon.world/profile/person/William_IX,_Count_of_Poitiers)
3. Genealogics
4. Sejm-Wielki.pl