Centauromachy

The Centauromachy was the battle between the Lapiths and Centaurs at the wedding of King Peirithous. It began when some centaurs drank too much wine and, being unused to it, became drunk. They then attempted to rape the bride. Theseus who was also present at the party, managed to rescue the bride, but a fight ensued. The Lapiths eventually won, killing half of the centaurs, and the rest escaped - leaving Thessaly and settling in Peloponnese. Unfortunately, there they met Heracles, who killed most of the rest of them, leaving only a few survivors (including Nessus who would later get his revenge)