Johann Katzianer
Johann Katzianer or Hans Katzianer, Freiherr zu Katzenstein und Fledingen was a Carniolan aristocrat and a commander of the Habsburg Imperial Army.
History
He is first mentioned in 1527 when Archduke Ferdinand, brother to the emperor, gathered an army to support his claims on the throne of Hungary, which had become vacant after King Louis II of Hungary was killed in the Battle of Mohács against the Ottomans. Katzianer took part in Ferdinand's Hungarian campaign of 1527–1528 against the voivode of Transylvania, John Zápolya, who had also been proclaimed King, supported by a large faction of the nobility in the Hungarian kingdom.Katzianer distinguished himself in the Battle of Tarcal in September 1527 and especially in the Battle of Szina in March 1528, but alienated himself from the population by the violence and misbehavior of his troops. In 1529 he participated in the Siege of Vienna against Suleiman the Magnificent. At the head of the light cavalry, he harassed the retreating Turks and liberated many Christian prisoners.
In 1530, he replaced bishop Krištof Ravbar as the governor of Duchy of Carniola. He served in that post until 1538 when he was replaced by Nikola Jurišić. After the death of Nicholas, Count of Salm in the same year, he was named commander in chief of the troops in Hungary, where he held off under difficult circumstances new attacks from John Zápolya and Suleiman the Magnificent. He gained a great victory in the Battle of Leobersdorf where he destroyed a Turkish army led by Kasim Bey.