William VI of Holland was a historical figure who ruled as the Count of Holland from 1417 until his death in 1425. He was a member of the House of Valois and played a significant role in the politics of the Low Countries during the early 15th century. His reign was marked by efforts to strengthen the authority of the count and manage the complex relationships with neighboring regions. During his rule, William VI faced challenges such as local uprisings and conflicts with the Duchy of Burgundy. His leadership contributed to the ongoing development of the County of Holland, which would later become part of the Dutch Republic. His legacy is intertwined with the broader history of the region during a time of political change.