Robert II of Flanders was a notable medieval ruler who reigned from 1093 to 1111. He was the son of Robert I of Flanders and Gertrude of Saxony. His rule was marked by efforts to strengthen the power of the County of Flanders and to maintain its independence from neighboring territories. During his reign, Robert II focused on expanding trade and improving the economy of Flanders, which was a significant center for commerce in Europe. He also played a role in the Crusades, supporting the Christian campaigns in the Holy Land, which further enhanced his reputation as a leader.