Ambrozy is best remembered for his military achievements. At the beginning of the 19th century, he was the commander of a Napoleon's Imperial Guard squadron (Polish 1st Light Cavalry Regiment of the Imperial Guard) and he led the defense of Napoleon himself during the battle of Arcis-sur-Aube. He also took part in the battles of Wagram, Somosierra and Berry-au-Bac. For his bravery at Wagram he was awarded with a title of Chevalier de l'Empire in 1811 and a hereditary rent amounting to 500 francs a year and for his achievements at Berry-au-Bac he received a hereditary title of a Baron of the French Empire in 1814, which was later confirmed by the Polish parliament in 1820.