Baldwin I of Jerusalem was a key figure in the early history of the Crusader States. Born around 1058, he became the first king of Jerusalem after the city was captured during the First Crusade in 1099. Baldwin was known for his military skills and leadership, which helped establish and expand the kingdom. In 1100, Baldwin was crowned king and ruled until his death in 1118. His reign was marked by efforts to consolidate power and defend against Muslim forces. He successfully captured several territories, including Edessa, and played a crucial role in shaping the political landscape of the region during the Crusades.