A vaunting, daring, and a menacing letter, sent from Sultan Morat the great Turke, from his court at Constantinople, by his embassadour Gobam, to Vladisllaus King of Poland, &c. Which letter was sent to the Christian King, since the truce concluded betweene the Turke and the Persian in March last; as by many copies whereof, may appeare, as it was sent out of Poland. Wherein he declares himselfe a mortall enemy to the said Christian King, threatning to invade his kingdomes and territories, with all manner of hostility. Whereunto is annexed a briefe relation of the Turkish present strength, both of horse and foote: with al the victories the Turkes have prevailed against the Christians these last three hundred yeares. As also what glorious victories the Christians have wonne against the Turkes, till this present yeare. 1638. Published by authority