In Greek mythology, Sinis or Siris was a bandit killed by Theseus. Described as a giant, Sinis was the son of Polypemon and Sylea. He tied people to two pine trees that he bent down to the ground, then let the trees go, tearing his victims apart. This led to him being called Pityocamptes ("pine-bender"). During his journey from Troezen to Athens, Theseus killed Sinis in the same way. Theseus then raped Sinis' daughter, Perigune, who later bore Theseus' son, Melanippus. She later married Deioneus of Oechalia.