To strengthen his rule he re-created the bishopric in Kraków and Wrocław and erected the new Wawel Cathedral.
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According to some older sources he initially wanted to have a career in the Church (it is probable that he held the post of Oblate) and even asked for a dispensation to became a monk.
Unlike his predecessors, Casimir I the Restorer promoted landed gentry over the druzhina as his base of power.
Casimir IV Jagiellon | Casimir III the Great | John Casimir | Hendrik Casimir | Casimir Pulaski | Casimir III | Casimir Gzowski | John II Casimir Vasa | Casimir IV | Casimir | Saint Casimir | restorer | Pierre Louis Jean Casimir de Blacas | Casimir V, Duke of Pomerania | Casimir I of Opole | Casimir Ehrnrooth | Theos Casimir Bernard | Prince Frederick Henry and Count Ernst Casimir during the Siege of 's-Hertogenbosch | John Casimir (clarinetist) | Frederick Casimir of Cieszyn | Ernest Casimir | Conservator-restorer | Casimir V | Casimir Pierre Périer | Casimir Oudin | Casimir I the Restorer | Casimir II the Just | Casimir III, Duke of Pomerania | Casimir Dudevant | Bendy Casimir |