 Theories as to why Marie Thérèse did the switch took place is abound; she is speculated to have been raped and gotten pregnant or to have suffered trauma and wanted to disappear.According to the theory, she became the 'Dark Countess', who resided at Hildburghausen in Thuringia, Germany.The Dark Countess, called Sophia Botta by the Count she was living with, went out in public with a veil only over her face or in a carriage.