In accordance with the plans which Schulmeister laid down for the trapping of Enghien, this lady, to whom the Bourbon was passionately attached, was taken one morning by emissaries of the spy, conveyed to Belfort across the French border and interned at a country house near the frontier, the reasons given for her detention being that she had become an object of suspicion to the omnipotent French authority. In the lady's name, a letter was then forged by Schulmeister, purporting to come from her to Enghien at Ettenheim, retailing the misadventure and asking her lover to use whatever means he could to procure her release from the country house. This implicit appeal to his chivalry was sufficient for the Duc, who, on 14th March, decided to see if by bribery he could not himself effect the release of his mistress. Acting just as the astute Schulmeister had foreseen, Enghien left Ettenheim with two attendants before midnight of the 14th, and it was at a hamlet in Baden territory close to the frontier and near Lorrach, that the spy's emissaries, all on the alert and noting the opportunity of an easy capture, seized upon his person. Thence the prince was conveyed to Strassburg, from which city he was taken to Vincennes, where, having undergone a mock-trial, he was executed on 20th March at dawn, his gaolers forcing him to hold a lantern so that the bullets might find their mark. It may be remembered that one of Enghien's last requests was for permission to send a letter to his lady friend, who, as soon as she had ceased to serve any further purpose, was quickly released by Schulmeister. This letter, it may be presumed, would have conveyed the Duc's explanation for the reasons which had prevented him from coming to his mistress's aid as she had requested. It is said that Savary, for whom the capture of Enghien meant the certain continuance of Napoleon's favour, paid the spy blood-money equal to £6000 for his successful entrapping of the Bourbon prince.