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William I of Hainaut

Count of Holland, Zeeland and Hainaut (1287–1337) ^[1]

Born

1287

Died

7 Jun 1337

Nationality

France ^[1]

Documented descendants

8506

Titles & positions

count ^[1]

House

House of Avesnes ^[1]

Religion

not recorded

Sources

Wikidata Q617496 (retrieved 1 Nov 2026)

William I of Hainaut (1287–1337), count | GOTHA Directory