Original: With the help of troops from his new father-in-law, Agamemnon then took the throne of Mycenae from his uncle Thyestes. Agamemnon and Clytemnestra became rulers of Mycenae, and she bore three daughters: Iphigenia, Chrysothemis, and Electra; and finally a son: Orestes.
Simplified: She was married to Agamemnon, King of Mycenae.