احتلال ألمانيا
After World War II most Germans were expelled to Allied-occupied Germany, including Marquardt who had to leave in July. Frauenburg's cathedral chapter then elected the aged Canon Johannes (Jan) Hanowski, a German of Polish ethnicity and long-term archpriest of Allenstein (today's Olsztyn), as capitular vicar, i.e. provisional head of the see, on 28 July 1945.