According to Parthenius, the father of Niobe. He had married her to Philottus, an Assyrian, who later died during a hunt. Assaon became enamored of his own daughter but she refused him. Angered, he invited his grandchildren to a feast at his palace, and when they were all seated he set his palace on fire and burned them alive. Afterward he became stricken with grief and killed himself.
- Grimal, Pierre; Kershaw, Stephen. (1992). The Penguin Dictionary of Classical Mythology. London: Penguin Books.
- Parthenius. Erotica Pathemata, 33.