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

In Greek mythology, Procris was the daughter of Erichthonius II of Athens and wife of Cephalus.

Eos kidnapped Cephalus when he was hunting but he refused to be unfaithful to Procris. Cephalus accidentally killed Procris some time later after he mistook her for an animal while hunting; Procris, a jealous wife, was spying on him. Cephalus was exiled for the death of his wife.