EN
(Title in Polish - 'Jak wlasciwie rozumiec niewlasciwie dotad rozumiane ostatnie cztery strofy zwrotki staropolskiej piesni 'Maryja, czysta dziewice...'). Research conducted heretofore on Polish mediaeval poetry has highlighted two of its masterpieces, the 'Bogurodzica' (The Mother of God) and 'Lament swietokrzyski'. Having completed his labour on reinstating the appropriate shape of the last four stanzas of the song in question, the author opts for adding up to the picture this third masterpiece which is not so much younger than Bogurodzica.