A treasury inventory of the Radziwiłł family's Nieśwież Castle (now Nesvizh in Belarus) made in 1740 includes a detailed description of a sword decorated with symbols of the Evangelists and inscriptions identical to those on Szczerbiec. According to the inventory, it was a gift from Crown Prince Jakub Sobieski to Prince Michał Radziwiłł, but the original source of the supposed replica was not given. An inventory made in 1738 of the treasure vault of the Sobieski family's Żółkiew Castle (now Zhovkva in Ukraine) mentions "an estoc ("koncerz") covered with golden plates bearing images of the Four Evangelists; Skanderbek's." Based on this record, historian Aleksander Czołowski hypothesized that a replica of Szczerbiec was forged as early as 1457 and awarded to George Kastrioti Skanderbeg, the national leader of Albania, in recognition of his victory over the Ottoman forces (see Battle of Ujëbardha). After King John III Sobieski defeated the Ottomans in the Battle of Vienna in 1683, Albanians presumably returned the sword to him. His son, Jakub, possibly passed it on to Michał Radziwiłł as a present.