A much more elaborate theory was advanced by Mr. W. F. Dickes in three articles in the _Magazine of Art_, and in several letters to the _Times_ in answer to critics unfriendly to his attempted solution of the riddle. His contention is that the picture was painted as a memorial of the Treaty of Nuremberg between the Catholics and Protestants in 1532, and that the two persons represented are the brothers Otto Henry and Philipp of Neuburg, Counts Palatine of the Rhine. This theory he still further elaborated in a book published in 1903 under the title of _Holbein’s Ambassadors Unriddled_. His arguments, however, are singularly unconvincing, and have failed to obtain the support of any serious student of Holbein. Before dealing with them, however, it will be better to give a brief account of the discoveries of Miss Mary F. S. Hervey, by means of which the identity of Holbein’s two sitters was finally set at rest. Her account of her discovery of a document which provided conclusive evidence that the two Ambassadors were Jean de Dinteville and George de Selve was communicated to the _Times_,[79] and this, together with further corroborative evidence, was embodied in a book, _Holbein’s Ambassadors: the Picture and the Men_, published in 1900. Footnote 79: _The Times_, December 7, 1895. In 1895 Miss Hervey happened to come across a copy of the _Revue de Champagne et de Brie_ for 1888, which gave a short notice of a picture formerly preserved at Polisy, containing the portraits of Jean de Dinteville and George de Selve. This paragraph was based on a catalogue published in March 1888 by M. Saffroy, an antiquarian bookseller of Pré-Saint-Gervais, in which a seventeenth-century parchment, describing the picture, was offered for sale. Miss Hervey hastened to communicate with M. Saffroy, and by one of those happy chances which seldom occur, the document was still in his possession, and proved to contain exactly the information which had so long been sought in vain. The following is a translation of its complete text as given by Miss Hervey:— “[Remarks on the subject of an excellent picture of the Sieurs d’Inteville Polizy, and George de Selve Bishop of Lavour, showing the offices they held, and the time of their decease.]