• Married (1): 1210
• Married (2): Before 1224
• Died: 20 Mar 1261
• Buried: La Charité-sur-Loire, Nièvre, Bourgogne-Franche-Comté, France

  Research Notes:

Her first and second marriages are indicated by the testament of her daughter "Agnetis dominæ Fuciniaci", dated 9 Aug 1268, which made bequests to "dominæ Beatrici dominæ de Thoria et Villario sorori suæ et filiis suis…Simoni de Joinville dom. de Jaiz fratri suo". Her parentage is indicated by the charter dated Jul 1225 under which "Simon seigneur de Joinville, sénéchal de Champagne" reached an agreement with "Jean de Chalon son beau-frère". It is confirmed by the charter dated 1227 under which "Simon de Joinville, comme mari de Béatrix, fille d'Etienne comte d'Auxonne et de Béatrix comtesse de Chalon" swore homage to the duke of Burgundy for the château de Marnay.

Dame de Marnay. "Simon seigneur de Joinville, sénéchal de Champagne" donated property to Molesme, with the consent of "sa femme Béatrix", by charter dated 1224. "Beatrix dame de Joinville executrice testamentaire de Simon sire de Joinville son mari mort l'année précédente" donated property to the abbey of Boulancourt by charter dated Feb 1235. “Jehans cuens de Bourgoingne et sires de Salins” confirmed the donation to the abbey of la Charité made by “Beatris ma suer dame de Marnay” and by “Simon son fil seignour de Jays” by charter dated Dec 1255.

The necrology of the abbey of La Charité records the death “XIII Kal Apr” 1260 of “Beatricis filiæ comitis Stephani in conventu dominæ de Mernay”. ¹