 Among the eight people accompanying Marie-Therese during her trip through France in 1795, the maid Catherine de Varenne and the teenage boy Pierre de Soucy is mentioned in the passports but are otherwise impossible to identify.Pierre de Soucy is stated in the passport to be the son of Renée Suzanne de Soucy, but she had no son by that name.According to the Switch theory, Pierre de Soucy (or possibly Catherine de Varenne) was in fact Ernestine de Lambriquet, who switched place with Marie-Therese during the journey with the assistance of Renée Suzanne de Soucy, after which Ernestine de Lambriquet continued to Austria posing as Marie-Therese while Marie-Therese herself settled in Germany as the "Dunkelgrafen".