Her trial in 1663 was the first recorded appearance of Mary Carleton. She was charged for masquerading as a German princess and marrying John Carleton in London under that name. She claimed that John Carleton himself had claimed to be a lord and was trying to extract himself from marriage as he had discovered there was no money in it. Divorce would have been an unheard of scandal in those times. Both sides of the conflict published pamphlets to support their own story. Mary Carleton was eventually acquitted.