This man stopped Syleus and Xenodice from forcing 
This man stopped Syleus and Xenodice from forcing travelers to plant their vineyard. He was the father of  Alexiares and Anicetus by his third wife, and he was known as "Blackbottom" by the Cercopes, who took his  weapons. He impregnated the fifty daughters of Thespius while hunting the Cithaeronian lion, and he won his  second wife by wrestling with the shapeshifting river god Achelous. His second wife unwittingly gave this hero a  shirt poisoned with the blood of Nessus, a centaur who had tried to rape Deianeira. For 10 points, name this son of  Zeus and Alcmene who killed Geryon and brought Cerberus from Hades.
This man stopped Syleus and Xenodice from forcing travelers to plant their vineyard.
{Heracles} [or {Hercules}]