John I of Brittany Biography

Historical biography and chronological timeline for John I of Brittany, based on 1 World History Database records associated with France.

1 records1237–12371 events0 places

Chronological biography

1237

Succession1237

House / House of Dreux · Duke

Succeeds as Duke of France

Titles and roles

Duke

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.