He was Governor of Galicia and Lodomeria from January 1774 to June 1774, and is the father of Karl Joseph Hadik von Futak.

[citation needed] During the War of the Austrian Succession, Hadik gained fame for his actions against the Prussian Army near the city of Neisse using surprise attacks and tricks under the unwritten laws of the so-called "small war," relying on the excellent training of his light cavalry squadrons.

During the war, he served under Prince Charles Alexander of Lorraine and was promoted to the rank of Lieutenant-Colonel.

[2] Early in the Seven Years' War, Hadik executed the most famous hussar action in history: when Frederick the Great was marching south with his armies, the Hungarian general unexpectedly swung his 5,000 force of mostly hussars around the Prussians and captured their capital of Berlin.

They had three sons and one daughter: Slovak National Academy of Defense of Marshal Andrej Hadík (2004–2008) was named after him.