are to be found in the "Byron" plays, and I have shown elsewhere (_Athenæum_, _loc. cit._) that though Chapman in handling the career of the ill-fated Marshal of France is apparently exploiting Pierre Matthieu, Jean de Serres, and Cayet in turn, he is really taking advantage of the labours of Grimeston, who had rifled their stores for his skilful historical mosaic. Grimeston must thus henceforward be recognized as holding something of the same relation to Chapman as Sir T. North does to Shakespeare, with the distinction that he not only provides the raw material of historical tragedy but goes some way in the refining process. _The Revenge of Bussy D'Ambois_ follows historical lines less closely than the "Byron" plays, but here, too, Grimeston's volume was Chapman's inspiring source, and the perusal of its closing pages gives a clue to the origin of this most singular of the dramatist's serious plays. The final episode included in the folio of 1607 was the plot by which the Count d'Auvergne, who had been one of Byron's fellow conspirators, and who had fallen under suspicion for a second time in 1604, was treacherously arrested by agents of the King while attending a review of troops. The position of this narrative (translated from P. Matthieu) at the close of the folio must have helped to draw Chapman's special attention to it, and having expended his genius so liberally on the career of the arch-conspirator of the period, he was apparently moved to handle also that of his interesting confederate. But D'Auvergne's fortunes scarcely furnished the stuff for a complete drama, on Chapman's customary broad scale, and he seems therefore to have conceived the ingenious idea of utilizing them as the groundwork of a sequel to his most popular play, _Bussy D'Ambois_. He transformed the Count into an imaginary brother of his former hero. For though D'Ambois had two younger brothers, Hubert, seigneur de Moigneville, and Georges, baron de Bussy, it is highly improbable that Chapman had ever heard of them, and there was nothing in the career of either to suggest the figure of Clermont D'Ambois. The name given by Chapman to this unhistorical addition to the family was, I believe, due to a mere chance, if not a misunderstanding. In Grimeston's narrative of the plot against D'Auvergne he mentions that one of the King's agents, D'Eurre, "came to Clermont on Monday at night, and goes unto him [D'Auvergne] where he supped." Here the name Clermont denotes, of course, a place. But Chapman may have possibly misconceived it to refer to the Count, and, in any case, its occurrence in this context probably suggested its bestowal