Aatxe

Aatxe (pronounced [a.atʃe], a shortened form of aratxe) is a spirit from Basque folklore whose name means “young bull.” He is also sometimes called Etsai. Aatxe is said to dwell in caves and hollows, emerging at night—especially during storms—in the form of a red bull. As a shapeshifter, he can also appear as a man.

Aatxe punishes evildoers such as criminals and wrongdoers, but he also protects the innocent by discouraging them from venturing out when danger is near. Some traditions suggest he serves the Basque goddess Mari, acting as either her representative or enforcer by punishing those who defy or deceive her. He is also known as Aatxegorri, meaning “young red bull.”

Many believe that Aatxe's myth dates back to the Paleolithic era, as numerous caves in the Basque region—such as Isturits, Sare, and Errenteria—contain ancient depictions of bulls, aurochs, and oxen. These images hint at deep roots for the legend in early human culture.