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How did Richard of Autun help establish the medieval duchy of Burgundy?

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Map of France highlighting the Burgundy (Bourgogne) region in white at the center-east of the country, with major cities such as Dijon, Nevers, Auxerre, and Macon labeled. Surrounding countries and bodies of water, including Belgium, Germany, Switzerland, Italy, Spain, the Atlantic Ocean, and the Mediterranean Sea, are also shown. An inset map in the upper left corner shows the location of Burgundy within France. — Burgundy Burgundy (Bourgogne), historical region of France.

Richard of Autun played a foundational role in the creation of the medieval duchy of Burgundy by organizing the majority of the territory located west of the Saône River under his own authority. This region had previously been recovered from his brother, Boso, by the French Carolingians. By consolidating this land, Richard established the power base that would become the duchy, which remained a significant entity within the kingdom of France for centuries.1