Theseus was an ancient Greek hero and legendary king of Athens. He stars in many of his own myths, like the Minotaur's labyrinth, as well as in the adventures of other heroes -- here, Jason's gathering of the Argonauts to go on a quest for the Golden Fleece.
This krater, a vessel that could be used for wine, is in red figure, meaning the red of the vase is colored black where the figures are not.
