In the late summer of 1410, the Siege of Marienburg marked a pivotal point in the conflict between the Teutonic Order and the joint Polish-Lithuanian alliance. The siege began as Poland and Lithuania, in response to prior Teutonic aggression, marshaled their forces to capture the stronghold of Marienburg, a significant defensive bulwark of the Order. The siege was an initial phase of the larger conflict that would culminate in the Battle of Grunwald. Under the leadership of commanders such as King Władysław II Jagiełło of Poland and Grand Duke Vytautas of Lithuania, the combined forces sought to dismantle the Order's influence in the Baltic region.

Despite a concerted effort, the Teutonic forces, commanded by Grand Master Ulrich von Jungingen, exhibited remarkable cohesion and resolve. The defense relied on their well-fortified stronghold, combined with strategic counterattacks that exploited weaknesses in the besieging forces. The successful repulsion of the siege led to significant reinforcement of the Order’s reputation throughout Europe as a resilient military organization.

The aftermath of the siege not only solidified the Teutonic Order’s foothold in the region but also contributed to the evolving geopolitical landscape of Eastern Europe. In the years to follow, the Order's continued military engagements would lead to profound shifts in alliances and territorial control.