The library does not have the volumes Nº 4. Content : t.1. The Cambridge medieval history : the christian roman empire and the foundation of the teutonic kingdoms / edited by Henry Melvill Gwatkin ; J. P. Whitney. -- t.2. The Cambridge medieval history : the rise of the saracens and the foundation of the western empire / edited by Henry Melvill Gwatkin ; J.P. Whitney. -- t.3. The Cambridge medieval history : Germany and the western empire / Henry Melvill Gwatkin ... [et al .]. -- t.5. The cambridge medieval history : contest of empire and papacy / J.R. Tanner, Litt ... [et al.]. -- t.6.The Cambridge medieval history : victory of the papacy / J.R. Tanner ... [et a.] t.7. The Cambridge medieval history : decline of empire and papacy / edited by J.R. Tanner ... [et al.].