Jean Errard
French mathematician (1554–1610)
- Fame41.4
- Momentum2.9
- Wikipedia276
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Updated 2026-07-17
Jean Errard or Errard de Bar-le-Duc was a mathematician and military engineer, initially in the service of the ducal court of Lorraine and then of Henry IV of France. He introduced Italian bastions to France and was a forerunner of Vauban as well as uncle to the painter Charles Errard the Elder. He has been called the "father of French fortification".
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Momentum2.9
Historical5.9
Source confidence35.0
Completeness70.0
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- Jean ErrardLow confidencewikipedia · fr.wikipedia.org
- Jean Errard de Bar-le-DucLow confidencewikipedia · de.wikipedia.org
- Jean ErrardLow confidencewikipedia · en.wikipedia.org
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