Taken by surprise, the impostor requested three days in order to prepare replies to these questions; and, as it was pointed out, as the lapse of twenty years might have impaired his memory, this demand was not, after all, so unreasonable. King Louis, however, found his answers so contradictory, and so generally unsatisfactory, that he commanded him to leave France within three days, not being enabled, in consequence of the safe conduct granted to him, to have him punished for his deception.
The pseudo Baldwin, being thus deprived of all hopes of the French king's aid or countenance, hastened to Valenciennes, where fresh disappointments awaited him. His allies, who from various reasons had espoused his cause, now began rapidly to desert him, and in far less time than it had taken him to attain his transient grandeur, he beheld himself divested of his borrowed plumes, and forced to fly in disguise. He attempted to get into Burgundy, where he had expectations of support, but his disguise was penetrated, his path discovered, and he himself captured by a Burgundian named Erard Castenac, who sold him to the Countess Jean for four hundred silver marks. The Countess at once adopted the prevalent method of obtaining information by putting him to the torture, and under it he is alleged to have confessed that he was Bertrand de Rans, a native of Champagne, and had been led to attempt his imposition whilst living as a hermit in a forest near Valenciennes. An old Belgian chronicle, recording his confession at full length, alleges that he had frequently heard the citizens bewailing the sad fate of Flanders in having to submit to the rule of a woman, the Countess Jean's husband being in perpetual imprisonment in France, and how they praised their late ruler Baldwin, often exclaiming, "Ah! if our dear prince could only return once more to Flanders, what a change there would be!"
Thus incited, the idea gradually formed in the Champagner's mind to personate the absent monarch, so that one day when some of these citizens were bemoaning their loss in the usual style, he startled them by exclaiming, "How do you know that your prince, after escaping from captivity, did not at once return to his country?" These words seemed to coincide with some suspicions his visitors had formed, probably from hints he had already dropped; and when they retired, although they did not dare say anything to him personally, they took good care to let everybody know what they had seen, heard, and suspected. The intelligence was rapidly disseminated all over Flanders, and was heard in all ranks, both high and low. Multitudes, including many of the higher classes, visited the hermit, and were received with an assumption of majesty that fully confirmed them in their belief. In the meanwhile Bertrand played his game so skilfully that it really appeared as if he were desirous of not being recognized as the long-lost Baldwin. At last, one day, one of his visitors had the courage or the impudence to say, "It is believed that you are Baldwin disguised in this hermit's garb;" whereupon he, thinking that the favourable opportunity for airing his pretensions had now arrived, responded sharply, "Those who imagine this do not deceive themselves, for besides me there never has been any Baldwin, Emperor of the Greeks, Count of Flanders and Hainault."
Upon hearing this declaration, all present, both high and low, saluted him as their sovereign, and furnished him with such money as they could raise; in a little while he attained to the height of his short-lived prosperity, whence, as has been seen, he as quickly fell.
After this confession had been obtained from the pretender he was condemned to death, but previously to the carrying out of the capital sentence was bound to a horse, and in that ignominious manner publicly exhibited in all the chief cities of the Netherlands. Finally he was hanged at Lille.
His execution did not dissipate the belief in the justness of his claim; the populace, says Mezeray, the French historian, preferring to believe that rather than resign her sovereignty, the Countess had had her father hanged. Matthew Paris, in his brief account of this imposture, declares that he was Baldwin, and that all his misfortunes arose from him having murdered an Eastern maiden, whom he had promised to marry and baptize; punishment overtaking him not because of the murder, but for "the uncanonical omission of baptism before its perpetration."
The Lilleois were fully confirmed in their belief of the hanged man's identity with Baldwin from the somewhat singular circumstance that after the execution the Countess Jean founded a great hospital in their city, and had placed upon everything in and about the building the bizarre design of a gibbet.