What is "hipponous"

In Greek mythology, Hipponous (Ἱππόνοος) referred to several people:

• Hipponous, father of Capaneus and Periboea with Astynome. He was son of Iocles, grandson of Astacus and great-grandson of Hermes and Astabe, a daughter of Peneus.
• Hipponous, one of the fifty sons of Priam, the last Trojan whom Achilles killed before his death.
• Hipponous, an Achaean warrior killed by Hector.
• Hipponous, son of Triballus. He was the father of Polyphonte by Thrassa, the daughter of Ares and Tereine.
• Hipponous and Adrastus, two otherwise unknown sons of Heracles, were said to have thrown themselves into fire in obedience to an oracle of Apollo.
• Hipponous, another name for Bellerophon.