·Direct
Pylon is slain by Polypoetes along with Ormenus.
See evidence text
“Polypoetes, mighty son of Pirithous, hit Damasus with a spear upon his cheek-pierced helmet. The helmet did not protect him, for the point of the spear went through it, and broke the bone, so that the brain inside was scattered about, and he died fighting. He then slew Pylon and Ormenus.”