Which Greek woman started the Trojan War?

The legend is that Helen, wife of Menelaus, king of Sparta absconded with visiting prince Paris (Alexander) of Troy, adding injury to insult by smuggling out a large part of Menelaus' portable property with her.

Menelaus appealed to his brother king Agamemnon of Argos, who gathered together a confederation of Greeks (Archaeans, Danaans) with the prospect of plundering the Asia Minor coast, including Troy.