This splendid project was destined never to be realized. Hardly had the foundations of the palace been laid when the disastrous campaign of Moscow put an end to the works. Money was wanted for soldiers and ammunition more than for palaces and parks. After the battle of Leipsic, Napoleon had the idea of making of his scarcely-commenced palace a Sans Souci like that of Frederick the Great--a quiet retreat where he could escape from the toils and cares of empire. But hardly had the works been recommenced on this diminished basis when the abdication of the emperor and his exile to Elba came to put a stop to them anew, and this time a decisive one; for, though a few workmen were employed in levelling the grounds and building the walls during the Hundred Days, there was neither spirit nor conviction in the work: the illusions of other days had fled, and were not to be revived. It was impossible for even the most sanguine partisans of Napoleon to imagine that the palace would ever be completed and receive him as a tenant. Under the Restoration it was decided to utilize the deserted foundations and to erect thereon a barrack. The laying of the cornerstone of the new edifice was made the occasion of a solemn festival in honor of the successes of the French army in Spain. The day chosen was the anniversary of the taking of the fort of the Trocadero at Cadiz by the duc d'Angouleme, and the better to mark the occasion the height on which the new barrack was to stand was solemnly rebaptized by the name of the fort in question. The programme of the fete was long and elaborate. It consisted of a representation of the taking of the Trocadero, a sham battle in which twenty battalions of the royal guard took part. Then came the laying of the cornerstone, which duty was performed by the dauphin and dauphiness. But the projected barrack of the Bourbons shared the fate of the palace of Napoleon. It was never built, and for nearly thirty years the ruins of the abandoned foundations and terraces were left to be picturesquely clothed with weeds and wild grasses. Only the name bestowed upon the height remained, and it was still called the Trocadero.