The Siege of Syracuse in 397 BC was the first of four unsuccessful sieges Carthaginian forces would undertake against Syracuse from 397 to 278 BC. In retaliation to the Siege of Motya by Dionysius of Syracuse, Himilco of the Magonid family of Carthage led a substantial force to Sicily. After retaking Motya and founding Lilybaeum, Himilco sacked Messana, then laid siege of Syracuse in the autumn of 397 BC after the Greek navy was crushed at Catana.