Battles of Komárom Three Battles of Komárom were fought in the Hungarian Revolution of 1848 between the Hungarian and Austrian armies at the Castle of Komárom . The Austrian legions were attacking Komárom from December 1848 . Under the command of János Damjanich and György Klapka Hungarian troops arrived to liberate the city . Four days later the Hungarian legions were successful and beat Austrians . On 18 June 1849 the 1 , 000 - strong Russian army arrived to help the Austrian army and together they tried to attack and occupy the castle . They attacked the Hungarian army on 20 June at Pered and on 28 June at Győr , both of which ended with Hungarian defeat . The second and the third battle at Komárom made another important chapter in the eight - month - long siege . Artúr Görgey and György Klapka , defenders of Komárom Castle , mounted a second attack on the Austrian army on 2 July 1849 . The young Hungarian army successfully defended the castle even though the Austrian army outnumbered them . The third battle ended on 11 July when another Austrian attempt to break through the Hungarian defences also failed . First battle . Görgey and Lajos Kossuth considered the first battle ( or " Komárom - Szőny " battle ) the most important battle of the Revolution . It decided the fate of Hungary . Because of this battle the Austrian army asked the Russian Czar for help . Görgey ' s army was approximately 24 , 000 strong , whereas the Austrian army had 30 , 000 men under the command of Franz Schlik . The Hungarian army started the attack . Colonel Károly Knezich and his legion of 4 , 000 men crossed the River Danube . Meanwhile Colonel Pál Kiss occupied Újszőny , a district of Komárom , the Monastery of Koppány and the right bank of the Danube . Around 9 am Damjanich came out of the castle and with Kiss attacked Schlik . During this time Görgey attacked the Austrian army that was advancing towards Ács . Klapka moved to Ószőny . After a heavy fight the Austrian army dominated the battle , so the Hungarian army had to retreat to Csillagerőd ( " Star Fort " ) . At the same time József Nagysándor attacked Schlik ' s army from the rear . Wilhelm von Montenuovo attacked Nagysándor and also Damjanich , but without success . Around 1 pm Görgey came into the battle . The Austrians advanced towards Győr with the loss of 2 , 000 men . The Hungarian loss was approximately 800 men . Second battle . The second battle , sometimes known as the Battle of Ács , started on 2 July . The Austrian Supreme Commander Julius Jacob von Haynau and Schlik jointly attacked Komárom at 5 am . Görgey commanded the right flank and the middle , and Klapka commanded the left flank . Károly Leiningen - Westerburg fought against the Austrian army at Mocsa , but after the first couple of successes the Hungarian army had to withdraw . Klapka , seeing the bigger Austrian army , withdrew his legion from Szőny to Újszőny . Leiningen started the fight , but the Austrian army won it . Major Rakovszky and Ernő Poeltenberg ' s attacks were more successful . They occupied the monastery and Herkálypuszta . After this , Klapka gave the order to retake Ószőny . The fight at Ószőny ended with Hungarian success . Meanwhile at the monastery the Austrians were successful : they occupied the vineyard on the hill and got nearer towards to the Hungarians . After they put their flag as a symbol of victory , they fought with the hiding Hungarians on Elisabeth Island . The Hungarians made them retreat to Ács . After the attack on the monastery , around 5 pm , Klapka started to attack Ószőny . The Austrians won two attacks , but they lost the third and had to retreat to Mocsa . At the same time Poeltenberg and Görgey attacked the Ausrians and won . At Csém he confronted the Russian army and lost . Görgey had other unsuccessful attacks and he himself was injured . The battle ended around 8 pm . The Austrian army lost 900 men , the Hungarian loss was approximately 1 , 500 men . Third battle . The main aim of the third Battle of Komárom ' s was to break through Haynau ' s blockade . Klapka took over the command of Görgey ' s army because of Görgey ' s injury . The Hungarian Government gave an order to the army to advance towards Maros . Görgey didn ' t follow the command because Haynau ' s army blocked the way south . The government gave a new order and on 11 July the Hungarian army started to attack the Austrians . New Hungarian troops arrived under the command of Ármin Görgey , and from Bátorkeszi under József Nagysándor . The Hungarian army ( comprising 58 infantry battalions , 68 cavalry battalions , and 200 cannon ) were under the command of Colonel Aschermann , Poeltenberg , Leiningen , Nagysándor and General Pikéthy . The right flank fought with Schlik ' s army . Although Pikéthy was successful , the Hungarians could not turn this success to their advantage . At Csém there was a fierce artillery fight with great losses . Nagysándor couldn ' t win against the Austrian cavalry . The battle finished at 5 pm with the retreat of the Hungarian troops . The Austrians lost 800 men , the Hungarians 1 , 500 . This battle was the bloodiest fight during the revolution . The battle ended with no decisive victory to either side , even though it was the bloodiest of the entire Revolution .