The preface to the book is as follows; "Imprimis, as concerns the authenticity of these tales perhaps the less debate may be the higher wisdom, if only because this Nicolas de Caen, by common report, was never a Gradgrindian. And in this volume in particular, writing it (as Nicolas is supposed to have done) in 1470, as a dependant on the Duke of Burgundy, it were but human nature should he, in dealing with the putative descendants of Dom Manuel and Alianora of Provence, be niggardly in his ascription of praiseworthy traits to any member of the house of Lancaster or of Valois. Rather must one in common reason accept old Nicolas as confessedly a partisan writer, who upon occasion will recolour an event with such nuances as will be least inconvenient to a Yorkist and Burgundian bias. The reteller of these stories needs in addition to plead guilty of having abridged the tales with a free hand. Item, these tales have been a trifle pulled about, most notably in "The Story of the Satraps," where it seemed advantageous, on reflection, to put into Gloucester's mouth a history which in the original version was related ab ovo, and as a sort of bungling prologue to the story proper."