The House of Atreus is a legendary family in Greek mythology, known for its tragic and cursed lineage. It includes notable figures such as Agamemnon and Menelaus, who played significant roles in the Trojan War. The family's history is marked by betrayal, murder, and revenge, often stemming from a curse placed on them. The curse began with Atreus, the father of Agamemnon and Menelaus, who faced betrayal and vengeance from his own family. This cycle of violence continued through generations, leading to further tragedies, including the sacrifice of Iphigenia and the eventual downfall of Agamemnon at the hands of his wife, Clytemnestra.