Ιόλαου was a significant figure in Greek mythology, known primarily as the nephew and charioteer of Ηρακλής (Hercules). He played a crucial role in many of Hercules' adventures, often assisting him in his heroic tasks and battles. In addition to his role as a companion, Ιόλαου is also celebrated for his bravery and loyalty. He is particularly remembered for helping Hercules during the Λαβύρινθος (Labyrinth) and for his involvement in the Αργοναυτική Εκστρατεία (Argonaut Expedition), showcasing his importance in various mythological narratives.