Sancho IV of Aragon was a king who ruled from 1285 to 1295. He was the son of Peter III of Aragon and Constance of Sicily. Sancho's reign was marked by efforts to strengthen the kingdom and maintain peace with neighboring territories. He faced challenges from both internal factions and external threats. During his rule, Sancho IV worked to consolidate power and improve the administration of his realm. He is known for his diplomatic skills, which helped to secure alliances and stabilize the region. His reign contributed to the ongoing development of the Crown of Aragon as a significant political entity in medieval Europe.