The Hermione reference article from the English Wikipedia on 24-Apr-2004
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Hermione

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In Greek mythology, Hermione was a daughter of Menelaus and Helen. Before the Trojan War began, she was betrothed to Orestes, her cousin through Menelaus' brother, Agamemnon. Later, her father wanted her to marry Neoptolemus. The two grooms fought and Neoptolemus was killed.

A number of fictional characters have been named Hermione: