Count Floris III of Holland was a nobleman who ruled from 1256 until his death in 1296. He was a member of the House of Avesnes and played a significant role in the political landscape of the County of Holland. His reign was marked by efforts to strengthen the power of the count and improve the region's economy. Floris III is known for his involvement in various conflicts, including disputes with neighboring territories. He also worked to enhance the legal system and promote trade, which contributed to the prosperity of Holland during his rule. His legacy is remembered as a time of growth and stability in the region.