William III of Mâcon, William IV of Burgundy

• https://en.wikipedia.org/wiki/William_III_of_M%C3%A2con

William III of Mâcon (1088–1156), also known as William IV of Burgundy, was count of Mâcon (1102–1156), count of Auxonne (1127–1156), count of Vienne (1148–1156) and regent of the county of Burgundy (1148–1156). He was a younger son of Stephen I, Count of Burgundy, and of Beatrice of Lorraine. After the death of his brother, Renaud III, he took control of the county of Burgundy in the name of his niece Beatrice. He was recognized as count by the emperor Frederick Barbarossa by 1152. He died in 1156 while on Crusade in the Holy Land, and Frederick married Beatrice and took over the county.

William married Adelaide-Pontia (Poncette), heiress of Lord Theobald of Traves, and had the following issue:

• Stephen II, who succeeded to Auxonne, Trier and the title Count of Burgundy
• Girard I, who succeeded to Mâcon
• Malaspina, possibly illegitimate

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The family of Guillaume IV de BOURGOGNE and Adélaïs ou Poncette de TRAVES [133900] BOURGOGNE (de), Guillaume IV (Étienne & Béatrix d'ALSACE [133901]), vicomte d'Auxonne et de Mâcon

• married , from France ? (France) TRAVES (de), Adélaïs ou Poncette (Thibaud, comte & Alix ..)

     1) Gérard Ier, comte de Mâcon et de Vienne, married about 1160 Guigonne (pa) ou Maurette (sc) de SALINS

Bibliographie : Histoire de la maison royale de France (Père Anselme); Le Sang de Charlemagne

http://www.francogene.com/quebec--genealogy/133/133900.php