Geoffrey I, Duke of Brittany

1000–1008

French noble

aristocrat

Born in Rennes

Contemporaries

People who walked the earth at the same time as Geoffrey I, Duke of Brittany:

• Avicenna (980–1037)
• Murasaki Shikibu (970–)
• Ferdowsi (940–1020)
• Al-Biruni (973–1048)
• Ibn al-Haytham (965–1039)
• Leif Erikson (972–1020)

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