Stryjkowski, telling of "a campaign of Vytautas the Don" (the story we already considered), dedicated to the campaign against Vorskla a poem.
Text: Stryjkowski M. Kronika polska, litewska, żmódzka i wszystkiej Rusi. – Warszawa: 1846, t. 2 – 117.
How this poem is interesting from a literary point of view, laying it simple in terms of source studies. There were used Dlugosz, Miechowita and the story from Lit1L chronicle (and erroneous date of 6906 taken from it).
Full text of section – in the Ukrainian version.