Krešimir I was a king of Croatia who ruled during the 11th century, specifically from around 935 to 945 AD. He is known for strengthening the Croatian state and expanding its territory. His reign marked a period of relative stability and growth for the kingdom. Krešimir I is often associated with the Croatian Church, as he supported its development and autonomy. He is also recognized for his efforts to maintain peace with neighboring regions, which helped to secure the kingdom's borders during his rule. His legacy contributed to the foundation of a more unified Croatian identity.