Psycharpax

Psycharpax is the name of the mouse-prince in Homer's comic epic Batrachomyomachia, or the "Battle of the Frogs and Mice".

Psycharpax, escaping a hunting cat, stops to take a drink at a lake, and upon doing so meets the frog king Physignathus. The frog offers to show his kingdom to Psycharpax, who jumps on his back. In the middle of the lake they come across a water snake and the frog dives to escape, resulting in the mouse being drowned. The whole episode is witnessed by a mouse on the shore, who blames Physignathus and so starts a war with the frogs.