Wielkopolska Chronicle

In one of the remaining copies it's written down as Chronicum Poloniae and in another Annalia vestuste gentic Polonorum vel Kronice.

[1] Some historians, such as Brygida Kürbis have argued that the first edition of the work was created between 1283 and 1296 and its author was the curator of the Poznań capitulary, Godzisław Baszko.

The second part, written more in the style of annals is based on yearly records of Capitularies of Gniezno and Poznań.

Przemysł I is presented as an ideal of a ruler who combines knightly valor (engaging himself only in defensive wars) with religious values (Christian humility and devotion).

Among other stories, legends, and historical narratives, the Wielkopolska Chronicle contains the first recorded version of the legend of Lech, Czech, and Rus, as well as a Polish version of the story of Waldere and Hildegyth (also Waltharius), a popular tale of medieval Europe, transplanted onto Polish soil.

Wielkopolska Chronicle in XV-century compilation Kodeks Sędziwoja , page 274.
Beginning in Chronica magna - copy from XV century.