The article presents and analyses “Ode the 15th of the First Book of Casimire imitated, encouraging the Polish Knights after their last Conquest to proceed in their Victory”, a little known anonymous English paraphrase of Maciej Kazimierz Sarbiewski’s Neo-Latin ode Lyr. I 15 “Cum Ladislaus, Poloniae princeps, fuso Osmano, Turcarum imperatore, victorem exercitum in hiberna reduceret”. The article presents both the historical context within which the original poem, one of the so called “turcyki”, poems exhorting Christian knights in their fight against the Turks, was written in 1621, and the context within which the paraphrase was written and published immediately after the Relief of Vienna (1683).