The battle in which the Noldor attacked the Teleri. When the Noldor decided to leave Valinor and asked for their ships, the Teleri refused to join, and even tried to talk them out of leaving. As a result, many of them were cruelly slain in the Kinslaying at their chief city of Alqualondë, or Swan Harbour. This was the first of three Kinslayings that were committed by Fëanor's people against their fellow Elves.