The memo reports on the renovation work carried out on the Archcathedral Basilica of St Stanislaus and St Ladislaus in Vilnius. The scope of work included the renovation of St Casimir's Chapel and the Cathedral's foundations. The reason for starting the work was the flood that inundated and partially damaged the Cathedral walls. During the repairs, the tombs of Alexander Jagiellon and Barbara Rzadziwiłłówna were found, as well as the tin containing the heart of Władysław IV. The information was published in the journal "Sztuki Piękne",1931, no. 8-9, p. 344 (public domain, reprinted from the Library of the University of Silesia, Katowice).