Jean I Dampierre de Namur, Margrave of Namur, was born 1267 to Gui de Dampierre (1225-1305) and Isabella von Luxemburg (1247-1298) and died 31 January 1330 of unspecified causes. He married Marguerite de Clermont 1307 JL . He married Marie d'Artois (c1291-1365) 6 March 1310 JL in Paris. Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899), William I of England (1027-1087), Hugh Capet (c940-996). Ancestors are from France, Germany, the United Kingdom, Belgium, the Netherlands, Italy, the Byzantine Empire.


Offspring of Jean I de Namur and Marie d'Artois (c1291-1365)
Name Birth Death Joined with
Jean II de Namur (1311-1335)
Gui II de Namur (1312-1336)
Henri de Namur (1313-1333)
Blanche de Namur (1320-1363) 1320 1363 Magnus IV of Sweden (1316-1374)

Philippe III de Namur (1319-1337)
Marie de Namur (1322-1357)
Marguerite de Namur (1323-1383)
Guillaume I de Namur (1324-1391)
Robert de Namur (c1325-1392)
Louis de Namur (1325-1382)
Elisabeth de Namur (1329-1382)

Common ancestors of Jean I de Namur (1267-1330) and Marie d'Artois (c1291-1365)

  1. Eleanor of Aquitaine (1122-1204)
  2. Robert II de Dreux (1154-1218)
  3. Yolande de Coucy (c1164-1222)

Footnotes (including sources)