But of all the MSS. illuminated by this artist the one which must most particularly attract our attention is the _Book of Hours_ executed for Etienne Chevalier, the greater part of which is now preserved at Chantilly. Almost all these miniatures are reminiscent of impressions received by Fouquet during residence in Florence and Rome. They were apparently executed during the years 1453 and 1460, soon after his return from Italy and immediately after the completion of the celebrated diptych of _Etienne Chevalier and his Patron Saint_ and the _Madonna and Child_ commissioned by this same Chevalier in 1453 for the Cathedral at Melun in memory of his wife Catherine Buti. One portion of this diptych (the _Madonna and Child_) is now, as mentioned above, in the Antwerp Museum, whilst the other has found its way into the Kaiser Friedrich Collection at Berlin. The miniatures at Chantilly, forty in number, represent, if not the greatest, at least the most fascinating period of the master's artistic career. Like the MS. of the _Antiquitates Judæorum_ they also suffered many vicissitudes before finally entering the haven of the Musée Condé. Nicolas, Baron of Navarre and Bearn, a descendant of Etienne Chevalier, in the year 1630, when at the point of death entreated his nephew, to whom he bequeathed his manuscripts, to preserve and augment them "_en faveur des gens doctes_." Howbeit that same nephew sold not only the _Boccaccio_ to Munich, but also his ancestor Etienne Chevalier's _Book of Hours_. Whilst the former remained intact the latter was mutilated by a dealer, who separated the text from the miniatures in order to sell them individually. It is interesting to note here that Gaignière in his _Receuils_ had copies made of the portraits of Etienne Chevalier and of Charles VII from this MS. and attached to them explanatory notes, as follows: "_Charles VII copié après une miniature dans une prière d'heures faite pour Etienne Chevalier, trésorier general de France sous ce Prince_"; and again, "_Copie d'après une miniature dans un livre d'heures qu'il avait fait faire_."