Roland is a legendary figure from medieval literature, primarily known from the epic poem The Song of Roland. He is depicted as a brave knight and the nephew of Charlemagne, the King of the Franks. Roland is celebrated for his courage and loyalty, particularly during the Battle of Roncevaux Pass, where he famously blows his horn, Olifant, to summon help. In the story, Roland's heroism is contrasted with themes of betrayal and sacrifice. His character embodies the ideals of chivalry and honor, making him a symbol of the knightly virtues in French literature. The tale of Roland has influenced various works and remains a significant part of European cultural heritage.