Orin eventually avenges his father's death, leading to the decline of the Mannon family.
One character in this work, jealous of Peter's engagement to his sister, commits suicide before he can complete a history of his family's crimes. The gardener Seth reveals that Captain Adam Brant is the daughter of Ezra's brother Dave, which only serves to increase Lavinia's distrust of her mother, Christine. Orin eventually avenges his father's death, leading to the decline of the Mannon family. For 10 points, name this trilogy by Eugene O'Neill, based on Aeschylus' Oresteia, whose title alludes to the grief of a daughter of Agamemnon.
One character in this work, jealous of Peter's engagement to his sister, commits suicide before he can complete a history of his family's crimes.
{Mourning Becomes Electra}