The mortuary remains of the Pomeranian princes have been preserved in the contemporary stone tomb . These remains were previously in sarcophagi , in the crypt of the Pomeranian Dukes' Castle in Szczecin . During the Second World War the crypt was collapsed and the sarcophagi was damaged. After the war, the sarcophagus was preserved and can now be seen at the museum of the Pomeranian Dukes' Castle . On the tomb there is an epitaph of about 1600. On either side of the tomb we can admire two wooden sculptures from the seventeenth century and consoles with skull motifs. These items come from the former equipment of the Cathedral. In the window of the chapel Irena Kisielewska stained glass was installed, depicting the nine-seat, Gryfitów's beautiful coat of arms .