The most important event of the Polish-Lithuanian-Teutonic War was the battle of Grunwald. The victorious army, led by Władysław Jagiełło, was thus presented with an opportunity to try and finish off the Teutonic Knights. The king with his army then laid siege to the capital of the Order, Marienburg (Malbork). They failed, however, to take the stronghold, so the Grunwald victory, spectacular though it was, did not result in achieving the main objective of the war, i.e. the liquidation of the monastic state of the Teutonic Knights. The Polish 19th-century historians with one voice comment on that failure of the Polish-Lithuanian army: while Grunwald's victory showed Poland's power, not taking the enemy's capital meant defeat. The commanders of the joint armies are blamed with sluggishness that wasted an opportunity for an easy capture of the castle which got strongly fortified by grand master Heinrich von Plauen. Yet, the 19th-century historiographers show understanding of the 'Marienburg failure' - seeing its source in the food shortages and lack of experience in handling the siege on the part of the joint armies. One ought to remember, however, that the historians' biased, negative opinion on king Władysław Jagiełło followed Jan Długosz's Chronicle's unfavourable account of the king - then the main source text.