Otho's hopes, however, were only partly realised. He had no reason to suspect Charles's good faith, but the feudal chiefs, with Régnier and Lambert at their head, so far from acknowledging the new duke, did all in their power to second the desperate efforts which Lothaire was making to annex Lotharingia, efforts which in despite of his allies were doomed to disappointment. True he at one time succeeded in reaching the imperial palace at Aachen, and there 'had the satisfaction of eating a dinner which had been prepared for Otho himself,' but he was forced to beat a hasty retreat, and his death, which took place shortly afterwards, followed as it was by the death of his only son, left the Emperor master of the situation (987), and Duke Charles heir to a crown which he was never able to wear. Hugh Capet, who for years past had been drawing nearer and nearer to the French throne, had himself proclaimed king at Noyon, and though Charles fought valiantly for his heritage, and there seemed every likelihood that his efforts would meet with success, he failed, almost in the hour of triumph: treacherously delivered into the hands of the usurper by the Bishop of Laon, he was cast into prison at Orléans where he shortly afterwards died (992). This unfortunate prince is the first ruler whose name is intimately associated with Brussels. Tradition says that he was born there, and he certainly made it his chief place of abode. His palace was situated on a little island between two branches of the Senne, somewhere about the site now occupied by the Place Saint Géry, and that little island contained the whole of the settlement called Brussels, for in those days Brussels was not a town, it was little more than a castle and a cluster of huts:--the dwellings of such of the ducal servants and court officials as were not lodged in the castle itself and of those who catered for the ducal household and maybe also the homesteads of a few farmers whom a sense of greater security had induced to settle there. Charles was succeeded in the Duchy of Lotharingia by his only son Otho, and when he died childless twenty years afterwards (1012), Lambert Long Col, who had married Charles's eldest daughter Gerberge, claimed his heritage as next-of-kin. He did not obtain the dukedom--that dignity fell to Godfrey of Ardennes, the son of Bruno's pupil, Godfrey the Captive--but he managed to make good his claim to a very considerable portion of his father-in-law's maternal heritage--the rich dowry which Henry the Fowler had bestowed on his daughter, the elder Gerberge, on her marriage with Duke Giselbert, and which later the Emperor Otho II. had granted to Duke Charles, her son by her second marriage. The castles of Louvain and Vilvorde and Brussels, and all the adjoining territory, fell to Lambert's share, and this vast and rich domain, called until the close of the century sometimes the county of Brussels, more often the county of Louvain, was the nucleus of the Duchy of Brabant.