King of Elis.
He was famous for his huge herds, which were given to him by his father, the sun god Helios - according to myth, he kept 513 bulls.
The Mycenaean king Eurystheus instructed Hercules to clean out the Augean stables from the accumulated waste over many years manure in one day. He suggested that Hercules remove the stalls in one day for a fee, and having received consent, he dug a canal from the nearest rivers, and the water washed away all the dirt from the stables.
Augeas refused to pay, and then Hercules went to war against him.
The king of Elis repelled the first attack, but later he was defeated and killed by Hercules