Count Leopold Anton von Firmian

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Contemporary portrait, Schloss Leopoldskron

Leopold Anton Eleutherius Freiherr von Firmian (11 March 1679 – 22 October 1744) was Catholic Bishop of Lavant 1718–24, Bishop of Seckau 1724–27 and Prince-Archbishop of Salzburg from 1727 until his death.


He was born in Munich, on his father's side to the dynasty of Freiherren (Barons) von Firmian descending from Sigmundskron (Formigar) Castle in Tyrol, by virtue of being the son of Countess Maria Viktoria von Thun and the Imperial envoy, Baron Franz Wilhelm von Firmian. His maternal uncle Count Johann Ernst von Thun was Bishop of Seckau from 1679 until 1687 and Prince-Archbishop of Salzburg from 1687 to 1709.

Leopold Anton von Firmian was the uncle of Cardinal Leopold Ernst von Firmian, also prince-bishop of Passau. His nephew, Karl Joseph von Firmian, the Austrian plenipotentiary minister in Milan, was renowned as a patron of the arts, including poets such as Giuseppe Parini, musicians such as Johann Ernst Eberlin and painters such as Giambettino Cignaroli. While Leopold Anton was an early patron of Leopold Mozart, his nephew, Count Karl von Firmian appears to have been one of the patrons of Amadeus Mozart's opera Mitridate, Re di Ponto in Milan circa 1770.


Firmian had prepared for an ecclesiastical career, received his ordination in Rome in 1707 and became provost of the Salzburg chapter in 1713. Pope Clement XI appointed him Bishop of Lavant in 1718, Pope Benedict XIII also made him Bishop of Seckau in 1724. On 4 October 1727 he was elected Archbishop of Salzburg. He had Schloss Klessheim finished and Schloss Leopoldskron erected as his private residence.

Firmian was a fierce advocate of the Counter-Reformation pursued in his Salzburg lands by the Jesuit order, who had been unable to stamp out widespread Crypto-protestantism. On 31 October 1731, the 214th anniversary of Martin Luther's nailing of his 95 Theses to the door of the church in Wittenberg, Firmian signed an Edict of Expulsion of Protestants[1] declaring that all Protestants in the archbishopric had to recant their non-Catholic beliefs or be banished within days. To the archbishop's surprise, over twenty thousand citizens professed Protestant beliefs and were exiled. Most of those who survived their flight were received by King Frederick William I of Prussia and settled around Gumbinnen in East Prussia. Others found refuge in Hanover, the Netherlands, and the British colony of Georgia. The expulsion drew vehement protests from the Protestant body in the Reichstag and the Protestant countries of Europe.[2] The loss of so many citizens did severe damage to Salzburg's economy.

Archbishop Firmian is buried at the crypt of Salzburg Cathedral.


  1. ^
  2. ^ Walker, Mack (1992). The Salzburg Transaction: Expulsion and Redemption in Eighteenth-Century Germany. Ithaca, New York: Cornell University Press. ISBN 0-8014-2777-0. 

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  • Freiherr is a title, translated as Baron, not a first or middle name.