Who were the four wives of Hercules?

The four wives of Hercules were Megara, Deianira, Iole, and Hebe. Megara was his first wife, whom he killed in a fit of madness. Deianira was his second wife, whose unintentional actions led to Hercules' death. Iole was a princess whom Hercules fell in love with, and Hebe was his final wife, whom he married after his ascension to Mount Olympus.