John I, Count of Holland was a nobleman who ruled from 1299 until his death in 1304. He was the son of Florence of Holland and John II, Count of Holland. His reign was marked by efforts to strengthen the power of the countship and manage conflicts with neighboring regions. During his rule, John I faced challenges from local nobility and external threats, particularly from Flanders. He was known for his attempts to maintain peace and stability in his territory, which included parts of modern-day Netherlands. His leadership laid the groundwork for future counts of Holland.