Hunyadi Mátyás korai halála talán a legjelentősebb fordulópont a magyar történelemben?

The Austrian lands were in miserable economic and financial conditions, thus Ferdinand desperately introduced the so-called Turkish Tax (Türken Steuer). In spite of the huge Austrian sacrifices, he was not able to collect enough money to pay for the expenses of the defence costs of Austrian lands. His annual revenues only allowed him to hire 5,000 mercenaries for two months, thus Ferdinand asked for help from his brother, Emperor Charles V, and started to borrow money from rich bankers like the Fugger family.

Jean Berenger; C.A. Simpson (2014). A History of the Habsburg Empire 1273–1700. Routledge. p. 160. ISBN 978-1317895701.

The Austrian branch of Habsburg monarchs needed the economic power of Hungary for the Ottoman wars. During the Ottoman wars the territory of the former Kingdom of Hungary shrunk by around 70%. Despite these enormous territorial and demographic losses, the smaller, heavily war-torn Royal Hungary had remained economically more important to the Habsburg rulers than Austria or Kingdom of Bohemia even at the end of the 16th century.

Robert Evans, Peter Wilson (2012). The Holy Roman Empire, 1495–1806: A European Perspective Volume 1 van Brill's Companions to European History. Brill. p. 263. ISBN 978-9004206830.

Out of all his countries, the depleted Kingdom of Hungary was, at that time, Ferdinand's largest source of revenue.

Dr. István Kenyeres: The Financial Administrative Reforms and Revenues of Ferdinand I in Hungary, English summary at p- 92 Link1: [1] Link2: [2]

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