sentences:  His archaeological interests took him as far as the Dead Sea and to Petra, in May 1864
  
  At Dampierre he commissioned extensive renovations under the antiquarian architect Félix Duban, who had restored the Château de Blois.Paintings by Marc-Charles-Gabriel Gleyre and Jean-Hippolyte Flandrin graced the gallery walls that were hung with red velvet, against which Luynes also mounted trophies of his antique arms, the prize piece of which was the ceremonial sword of Youssuf, son of Boabdil, the last Moorish king of Granada; it followed Luynes' collections to the Cabinet des Médailles.He was quite naturally the head of the committee reporting on metalwork at the Great Exhibition of 1851, and published his findings.