Born at the château de Mehun-sur-Yèvre in the beginning of 1367,[2] she was named after her paternal grandmother, Bonne of Luxembourg.

She was first betrothed to Amadeus VII, Count of Savoy, on 7 May 1372 with a royal dowry of 100,000 francs provided by her uncle.

[2] The marriage was celebrated on 18 January 1377 in the presence of the King, but Bonne did not move to Savoy to live with her husband until March 1381, when she was 14 years old.

[2] They had the following children: After Amadeus' death in 1391 from tetanus, a regency dispute over their son Amadeus VIII ensued after her husband passed over Bonne in favor of his mother Bonne of Bourbon, who became regent of the new count during his minority instead.

Bonne subsequently left her children in Savoy and returned to Berry in France to live with her mother.