Palaestinus
Palaestinus (Ancient Greek: Παλαιστῖνος) was in Greek mythology a son of Poseidon and father of Haliacmon. From grief at the death of his son, Palaestinus threw himself into the river, which was called after him Palaestinus, and subsequently Strymon.[1]
References
This article incorporates text from a publication now in the public domain: Schmitz, Leonhard (1870). "Palaestinus". In Smith, William (ed.). Dictionary of Greek and Roman Biography and Mythology. Vol. 2. p. 90.