Casimir II the Just

1138 AD - Kazimierz Sprawiedliwy was born. Polish ruler.

            - Also known as Casimir the Just.

1177 AD - He became the duke of Kraków and of Sandomierz.

            - He drove his brother Mieszko III from power at Cracow and became the principal duke of Poland.

1180 AD - At the Congress of Leczyca, the nobility and clergy, in return for privileges he had granted them, vested Casimir's descendants with hereditary rights to the crown.

            - Casimir himself was never crowned king.

1194 AD - Died on May 5th.