Sciron

[3] An Isthmian outlaw, Sciron dwelt at the Sceironian Rocks, a cliff on the Saronic coast of the Isthmus of Corinth on the Megarian territory.

[2][7] He robbed travelers passing the Sceironian Rocks and sitting near the sea he made it his practice to force them to wash his feet at a precipitous place.

[11] In the pediment of the royal Stoa at Athens, there was a group of figures of burnt clay, representing Theseus in the act of throwing Sciron into the sea.

In one version, Theseus instituted the Isthmian Games so as to honor him and made expiation for his murder because of their kinship (they were cousins as their mothers Aethra and Henioche were sisters).

In another story, Sciron, here identified as the son of a man named Polypemon, threw his daughter Alcyone into the sea to drown when he discovered that she had been sleeping with multiple men whilst unmarried.