12. Ferdinand III ( Holy Roman Emperor, 1608-57) Letter in Latin signed to Duke Odoardo Farnese of Parma, 2pp. with conjugate blank and address panel, folio, Vienna, 15th July 1656, informing him that he is providing for the defence of Milan against the invading forces of the Duke of Marina and Reggio, and that a force will be sent in secret across the Alps, folds, browned.
est. £300 – £400