# William I, Count of Hainaut

> Count of Holland, Zeeland and Hainaut (1287–1337)

**Wikidata**: [Q617496](https://www.wikidata.org/wiki/Q617496)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/William_I,_Count_of_Hainaut)  
**Source**: https://4ort.xyz/entity/william-i-count-of-hainaut


## References

1. Integrated Authority File
2. Genealogics
3. The Peerage
4. Freebase Data Dumps. 2013
5. Virtual International Authority File
6. [Source](http://www.regesta-imperii.de/id/1308-05-11_1_0_6_4_1_15_o)
7. [Source](http://www.regesta-imperii.de/id/1308-05-12_1_0_6_4_1_16_p)
8. [Source](http://www.regesta-imperii.de/id/1309-01-07_1_0_6_4_1_52_10)
9. [Source](http://www.regesta-imperii.de/id/fafc8c23-b2bf-40f9-9cc2-72503da49042)
10. [Source](http://www.regesta-imperii.de/id/c4fea731-1a28-4cc3-bbd6-84069fc0f603)
11. [Source](http://www.regesta-imperii.de/id/1345-12-31_3_0_7_3_0_575_575)
12. [Source](http://www.regesta-imperii.de/id/1330-06-14_1_0_7_7_0_298_298)
13. [Source](http://www.regesta-imperii.de/id/1330-06-14_2_0_7_7_0_299_299)
14. Sejm-Wielki.pl