Kadłubek did not regard the division of Poland in 1138 as the beginning of the division of Poland. On the contrary, he created a picture of a unified monarchy with the capital in Kraków. Dlugosz, using his chronicle, followed his lecture on the history of Poland in the second half of the 12th century. In this way, the successive seniors were no different from the earlier Polish monarchs. However, Dlugosz annotated his argumentation with a commentary written from the perspective of the disintegration of central power that occurred in the 13th century. The paper aims to deepen the above observations and interpret the contradiction inherent in Długosz's Annals.