[LIFE IN EXILE OF THE IMPERIAL FAMILY]. Interesting set of 7 autograph letters signed concerning banking relationships between several members of the imperial family and the Barring Brothers bank in London. Mention is made of several transactions concerning the bonds of the Dette d'Egypte Unifiée, the Fonds Russes, Rochester-Pittsburgh, Rio Pinto shares, the Banque Ottomane, etc. - PRINCE NAPOLÉON-JÉRÔME (1822-1891). L.A.S. dated 12 May 1890 to Messrs Barring Brothers, London; 1 page in-8 headed Villa de Prangins, Près Nyons, Canton de Vaud, Switzerland - PRINCE NAPOLÉON-JÉRÔME (1822-1891). L.A.S. 18 November 1890 to Messrs Barring Brothers, London; 2 pages in-8 headed Villa de Prangins, Près Nyons, Canton Vaud, Switzerland - PRINCE NAPOLÉON-JÉRÔME (1822-1891). L.A.S. dated 24 November 1890 to Messrs Barring Brothers, London; 2 pages in-8 headed Villa de Prangins, Près Nyons, Canton Vaud, Switzerland - FRANCESCHINI-PIETRI Jean-Baptiste (1834-1915). L.A.S. dated 20 January 1891 to Messrs Barring Brothers, London; 2 pages in-8 headed Farnborough Hill, Farnboro' Hant - IMPERATRESS Eugénie [Countess of Pierrefonds] (1826-1920). L.A.S. dated 7 February 1891 to Messrs Barring Brothers, London; 3 pages in-8 headed Farnborough Hill, Farnboro' Hants - FRANCESCHINI-PIETRI Jean-Baptiste (1834-1915). L.A.S. dated 7 February 1891 to Messrs Barring Brothers, London; 4 pages in-8 headed Farnborough Hill, Farnboro' Hants - LE SOUFACHÉ Joseph-Michel (1804-1887). L.A.S. dated 1 July 18[79?] to Empress Eugénie; 3 pages small in-8 headed Château des Hauldres. Letter of condolences following the death of the Prince Imperial. One joined a photograph appearing the portrait of the imperial Prince by Alexandre Bassano, the Ceremonial for the Ondoiement of an imperial prince established by Cambaceres, March 3, 1856 (6 pages tapuscrites), the Program of the Ceremony of the opening of the legislative Session of 1857 established by Cambaceres (7 pages tapuscrites). One joined the catalogue of sale of the Succession of Mr. Félix Rainbeaux, son of Firmin Rainbeaux, Squire of the emperor Napoleon III, established under the ministry of Me Henri Baudoin, October 21-22-23, 1936; the catalogue of exhibition of the Memories of the Prince Imperial within the French Federation of the Artists, of April 5 at May 22, 1935 (cover insolée); Exemplaire "N° special" of La Cohorte devoted to the Prince imperial. Jean-Baptiste Franceschini-Pietri (1834 - 1915), from a family of Corsican notables, became private secretary to Emperor Napoleon III from 1860 until the fall of the Second Empire in 1870. A man of trust, he remained loyal to the imperial family in exile and continued to act as adviser and representative of Napoleon Eugène, the Prince Imperial, and later of the Empress Eugénie. In 1860, the Empress Eugenie took on the honorary title of Countess of Pierrefonds, a testimony to her attachment to Pierrefonds Castle, restored by Eugène Viollet-Leduc at the Emperor's request. This fanciful and discreet title enabled her to exchange "incognito" with certain people, particularly in the context of business relations. Jean-Michel Le Soufaché (1804-1887) was a pupil of architects François Debret and Félix Duban. He graduated from the École des Beaux-Arts in Paris in 1830. He worked under the direction of Frédéric Nepveu on the refurbishment of the Château de Versailles, then with Félix Duban on the extension of the École des Beaux-Arts and the restoration of the Château de Dampierre. He subsequently designed private mansions for the aristocracy and bourgeoisie, including the Montesquiou-Fézensac mansion and the Alfred Sommier mansion. From 1856 to 1862, he supervised the construction and interior fittings of the Château de Sceaux for the Duke of Treviso, and was made a Knight of the Legion of Honour in 1862.