Jaroslav Lev of Rožmitál

He was probably a member of the Czech expedition, as a soldier of fortune in the invasion of Władysław III of Poland in Ottoman territory and took part in the Battle of Varna in 1444.

The main purpose of his trip was to build unity between the free Christian Princes under the leadership of Louis XI of France and manage the resistance against the Ottoman Empire.

The furtive reasons for the trip can be discovered in Šašek's Memoirs, notably the rumour that the King Władysław III of Poland had survived the Battle of Varna in 1444.

Upon his return, Jaroslav Lev of Rožmitál was appointed to the highest rank of Lord Steward of the Bohemian kingdom, from 1467 to 1469 he was also captain of the district of Písek.

Gradually the family lost their power, moved to Moravia and finally became part of the stock that emigrated to Poland after the Battle of White Mountain and the events in 1626.