Casimir IV

His brother and successor, Casimir IV., had two powerful enemies, the Teutonic knights, and the Polish nobility.

Such outbursts against Casimir IV. are not infrequent in Dlugosz’s Historia Polonica, and his strong personal bias must certainly be taken into consideration in any critical estimate of that famous work.

Both these embassies were undertaken contrary to the wishes of King Casimir IV., who was altogether opposed to Olesnicki’s ecclesiastical policy.

In 1467 the generous and discerning Casimir IV. entrusted Dlugosz with the education of his sons, the eldest of whom, Wladislaus, at the urgent request of the king, he accompanied to Prague when in 1471 the young prince was elected king of Bohemia.

She urged that the republic should ask the help of Casimir IV, King of Poland, but Ivan's friends in the vetch� replied that, if Poland should win, the Roman Catholic Church would enter, whereas Russia was at least loyal to the Greek Church.