Joan I
Joan I may refer to:
- Joan I of Burgundy (1191–1205), a.k.a. Joanna I, Countess of Burgundy
- Joan I of Navarre (1271–1305), daughter of King Henry I of Navarre and Blanche of Artois
- Joan I of Auvergne (1326–1360), a.k.a. Jeanne I, Countess of Auvergne
- Joan I of Naples (1328–1382)
- Joanna of Castile (1479–1555), a.k.a. Joanna I or Juana I, Queen of Castile and Aragon, daughter of Isabella I of Castile and Ferdinand II of Aragon
This disambiguation page lists articles about people with the same name.
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