A letter written by his Highness the Prince Elector of Brandenbovrgh, unto his most Serene and Illustrious Highnes Richard lord protector of the common-wealth of England, Scotland, and Ireland, with the territories and dominions thereunto belonging

Denoting Their Highness's joynt-interest in the protecing and defending of the reformed Protestant cause; and the Swedes converting of those forces, and means which they receive from England, and their other allyes, for the propagating of the Protestant cause: towards the compassing of their own ambitious ends, the subverting of the ...