 But Penthesilea and her Amazon troops were slain at the end of a hard-fought battle with the Greeks.After recounting Penthesilea's accomplishments in "De Mulieribus Claris" Boccaccio wrote that "if we remember that practical experience can change natural dispositions" the legends of the Amazons become plausible.He wrote that "through practice, Penthesilea and women like her became much more manly in arms than those born male" who had been weakened through idleness and love of pleasure.