Reginald of Burgundy was count of Montbéliard from 1282 to 1321. He was a son of Hugh of Chalon

Hugh III, Count of Burgundy

Hugh III of Chalon, Count of Burgundy , also known as Hugues de Bourgogne, was count of Burgundy by his marriage to countess Adelaide I of Burgundy when he was aged 16, on 1 November 1236. He was the son of John, Count of Chalon and his first wife Mahaud of Burgundy.He and Adelaide had the...

 (from the house of Ivrée

Anscarids

The Anscarids or Anscarii or the House of Ivrea were a medieval Frankish dynasty of Burgundian origin which rose to prominence in Italy in the tenth century, even briefly holding the Italian throne. They also ruled the County of Burgundy in the eleventh and twelfth centuries and it was one of their...

), sire of Salins, and his wife Adelaide

Adelaide, Countess Palatine of Burgundy

Adelaide was countess palatine of Burgundy from 1248 until her death. She was also Countess of Savoy and Bresse through her marriage in 1267 to Philip I, Count of Savoy....

. He married Guillemette de Neufchatel and they had a daughter, Joanna, who married first Ulrich III, Count of Pfirt and second Rudolf of Baden. By her first marriage she had 4 daughters, of whom two survived - Joanna of Pfirt

Joanna of Pfirt

Countess Joanna of Pfirt was Duchess consort of Austria and a member of the House of Habsburg by marriage. She was the elder daughter of Ulrich III of Pfirt and his wife, Joanna of Burgundy.- Family :...

, wife of Albert II, Duke of Austria

Albert II, Duke of Austria

Albert II of Austria , known as the Wise or the Lame, was Duke of Austria.-Life:Albert II was born at Habsburg, the son of Albert I of Germany, Rex Romanorum, and Elisabeth of Tirol...

and Ursula. After Reginald's death in 1322, his daughter Joanna inherited his lands. After Ulrich's death in 1324, she remarried and had 2 more daughters, Margaret and Adelaide.

Source

Le Roman d'une Principauté, D. Seigneur. - Éditions : Cêtre (Besançon).