Prior to World War II, the Malbork castle housed four decorative militaria depicting the Grand Master’s emblem: one vexilloid and three shields. The vexilloid banner was sewn to commemorate Emperor Wilhelm II of Germany visiting the castle in Malbork in 1902 to attend the consecration of the reconstructed church at the High Castle. Hanging in the Winter Refectory during the ceremony, the vexilloid would later be transferred to the Seven Pillars Hall. A 1902-1905 siege shield was one of the shield types. Hung in the Seven Pillars Hall to add to the ceremony of celebrating the 500th anniversary of the 1410 Battle of Tannenberg, its form was based on one of the siege shields of the city of Erfurt, the coat of arms emulating the doors of Saint Elizabeth’s Church in Marburg. The coat of arms was also referenced when the two other shields – defence and triangular shield – were reconstructed. Manufactured pre-1894, the defence shield was used multiple times as a sample for castle interior polychromies. The triangular shield was part of Theodor Blell’s collection, purchased in 1892 by the Society for the Restoration and Beautification of the Malbork Castle. Its form was based on 13th- and 14th-century triangular shields, preserved at Saint Elizabeth’s Cathedral in Marburg until the 1880s. The artefacts described herein were separated after the war: the banner ended up in private hands, the owner selling it to Malbork castle custodians in 1960. The siege shield remained at the castle, and was duly registered in the Militaria Collection inventory. The defence and triangular shields were taken to Warsaw in 1945, and ultimately made part of the Polish Army Museum collection. Today, they are mementos of a period of the castle in Malbork having been a museum of interiors designed to project an impression of a castle recently abandoned by knights of the Teutonic Order.