Sophie as a mistress in England was one thing, but Sophie unattached as a mistress in France was another. One wonders why the Duc should have been squeamish on this point. Perhaps it was that he thought it would look vulgar to take up a former mistress after so long. At all events, he was ready enough to resume the old relationship with Sophie, provided she could change her name by marriage. Sophie was nothing loth. The idea fell in with her plans. She let it get about that she was the natural daughter of the Duc, and soon had in tow one Adrien-Victor de Feucheres. He was an officer of the Royal Guard. Without enlarging on the all-round tawdriness of this contract it will suffice here to say that Sophie and Adrien were married in London in August of 1818, the Duc presenting the bride with a dowry of about L5600 in francs. Next year de Feucheres became a baron, and was made aide-de-camp to the Duc. Incredible as it may seem, de Feucheres took four years to realize what was the real relationship between his wife and the Prince de Conde. The aide-de-camp and his wife had a suite of rooms in the Prince's favourite chateau at Chantilly, and the ambition which Sophie had foreseen would be furthered by the marriage was realized. She was received as La Baronne de Feucheres at the Court of Louis XVIII. She was happy--up to a point. Some unpretty traits in her character began to develop: a violent temper, a tendency to hysterics if crossed, and, it is said, a leaning towards avaricious ways. At the end of four years the Baron de Feucheres woke up to the fact that Sophie was deceiving him. It does not appear, however, that he had seen through her main deception, because it was Sophie herself, we are told, who informed him he was a fool--that she was not the Prince's daughter, but his mistress. Having waked up thus belatedly, or having been woken up by Sophie in her ungoverned ill-temper, de Feucheres acted with considerable dignity. He begged to resign his position as aide to the Prince, and returned his wife's dowry. The departure of Sophie's hitherto complacent husband rather embarrassed the Prince. He needed Sophie but felt he could not keep her unattached under his roof and he sent her away--but only for a few days. Sophie soon was back again in Chantilly. The Prince made some attempt to get de Feucheres to return, but without success. De Feucheres applied for a post in the Army of Spain, an application which was granted at once. It took the poor man seven years to secure a judicial separation from his wife.