# Ada, Countess of Holland

> Countess regnant of Holland from 1203 to 1207

**Wikidata**: [Q346380](https://www.wikidata.org/wiki/Q346380)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ada,_Countess_of_Holland)  
**Source**: https://4ort.xyz/entity/ada-countess-of-holland


## References

1. The Peerage
2. Integrated Authority File
3. Freebase Data Dumps. 2013
4. Online Dictionary of Dutch Women
5. CERL Thesaurus