Iphigenia

To appease offended gods before going to war, a commander must sacrifice his favorite daughter to them but does so under the pretext of marrying her off.
The Greek army is about to set sail to a great battle, but the winds refuse to blow. Their leader, King Agamemnon, seeks to provide better food, but accidentally slays a sacred deer. His punishment from the gods, the sacrifice of his daughter Iphigenia.