Vormundus Richter (born Tristan Stirling II) is a human male who lives somewhere in Exekia. Raised by Clara Richter and Kemet, he is only vaguely aware of his true heritage as the eldest son of King Aldous and Queen Laura.
He was born at Carthmere Castle. When he was four years old, his father decided to take him with him to war. His mother went with him. Wanting to stop the invasion and genocide planned by Aldous, Laura agreed to exchange her newborn son, the heir to the throne of Apicarta, for an Exekian child while the two were being held captive by the Exekians at the fortress of Heliobas. She named the changeling John and carried him with her into her husband's camp. Afraid of what the Exekians might do to his son, Aldous agreed to halt the assault on the fortress, and eventually called off the war altogether.
Her natural son was given to Clara Richter, the human wife of the Exekian commander Kemet. She renamed him Vormundus after the prophet Dagda Vormund, and raised him as her own child.