found: Genealogia vnd Chronica, des durchlauchten hochgebornen, königlichen vnd fürstlichen Hauses, der Fürsten zu Anhalt, Graffen zu Ballenstedt vnd Ascanie, Herrn zu Bernburgk vnd Zerbst , 1556(name not given; binding of NN copy stamped with initials M G Z S H Z S P; inscriptions in NN copy signed by sons of Philipp, Duke of Pomerania with forenames followed by initials H.Z.S.P. [Herzog zu Stettin Pommern] and dated July 8, 1559)
found: Aus der Geschichte der Universität Greifswald, 1906, via Google Books, Mar. 2, 2010:p. 27 (letter dated July 6, 1559, signed "Maria, geborn zu Sachsen, Herzogin zu Stettin, Pommern, etc."; requests son to help see that she receives "das Buch, den Anhaltischen Stamm" from the bookbinder, who has had it too long)
found: German Wikipedia Web site, Mar. 2, 2010(Maria von Sachsen, 1515-1583; through marriage Herzogin von Pommern-Wolgast; b. Dec. 15, 1515, Weimar, d. Jan. 7, 1583, Wolgast; Saxon princess, daughter of Johann der Beständige, Elector of Saxony; m., Feb. 27, 1536, Herzog Philipp I. von Pommern)
found: thePeerage.com, Mar. 2, 2010(Marie von Sachsen, #7391, b. 15 Dec. 1515, d. 7 Jan. 1583; m. Philipp I, Herzog von Pommern)
found: Das Betbüchlein der Landgräfin Maria von Thüringen, 1582:title page (Landgräfin Maria von Thüringen)
found: Religiöse Frauenlieder des 15.-16. Jahrhunderts, 2002:page 360 (Maria; Herzogin zu Sachsen, Landgräfin zu Thüringen und Markgräfin zu Meissen; author of religious hymns; born December 15, 1515; died January 7, 1583; married to Philipp I., Herzog von Pommern-Wolgast))