to the Duke, and only retained the Lordships of Marienwerder und Schönberg. Queis married Duchess Apollonia, a daughter of Victor of Poděbrady, Duke of Münsterberg and Opava, who had been a nun in the Poor Clares monastery at Strzelin. Erhard of Queis died in 1529, on his return from a convention of the Prussian Landtag in Königsberg. His widow died in 1534. References and sources Paul Tschackert: Urkundenbuch zur Reformationsgeschichte des Herzogthums Preußen, vol. 1, Leipzig, 1890, p. 39 Robert Stupperich: Die Reformation im Ordensland Preußen, Ulm, 1966 W. Hubatsch: Geschichte der evangelischen Kirche in Ostpreußen, vo1, Göttingen, 1968, passim 1490 births 1529 deaths People from Oder-Spree Converts to Lutheranism from Roman Catholicism 16th-century Lutheran bishops in Prussia Lutheran bishops of Pomesania