Reginald I, also known as Reginald of Burgundy, was a notable figure in the medieval period, serving as the Duke of Burgundy from 1076 until his death in 1105. He was a member of the House of Capet and played a significant role in the political landscape of France during his reign. His leadership helped to strengthen the duchy and expand its influence. Reginald I was known for his alliances through marriage and his efforts to maintain peace among the various noble families in the region. His reign contributed to the development of Burgundy as a powerful duchy, setting the stage for future rulers in the area.