A Croatian general managed to defend Vienna from an army 140,000 strong with just 800 soldiers!
Nikola Jurisic was a Croatian nobleman, soldier and diplomat. He led the armies of the Croatian Krajina in defense against invasion from the Ottoman Empire which was advancing towards Vienna.
He is perhaps most famous for defending the small border fort of Koszeg with only 700-800 soldiers with no cannons and a few guns, preventing the advance of the Turkish army of 120,000 – 140,000 towards Vienna.
History differs on what exactly happened, in some versions he heroically defended the fort from attacks and eventually the Ottomans gave up. In others, he managed to stall them long enough for an army to gather in Vienna.