Liutgard of Saxony —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=8303416

Bruno the Great — From a genealogy of the Ottonians (Chronica St. Pantaleonis, 2nd half of 12th century. Herzog August Bibliothek, Wolfenbüttel, Cod. Guelf. 74.3 Aug., pag. 226)
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=8301824

Henry I, Duke of Bavaria —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=8301767

Otto II, Holy Roman Emperor —
Photo Credit: By Meister des Registrum Gregorii - Public Domain, https://commons.wikimedia.org/w/index.php?curid=30524851

Gerhard Schroder — Cropped from photo by Olaf Kosinsky
Photo Credit: By Olaf Kosinsky - Unknown source, CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index.php?curid=67536757

Coat of arms of Poland —
Photo Credit: By From Polish Wikipedia. Originally uploaded at pl:Grafika:Godło Polski.svg, Public Domain, https://commons.wikimedia.org/w/index.php?curid=543809

Lithuania Icon —
Photo Credit: By Samhanin - Own work, sources: Lithuanian coat of arms Vytis. 16th century.png, Grand Duchy of Lithuania banner.svg, CC0, https://commons.wikimedia.org/w/index.php?curid=57389736

Albrecht von Preussen —
Photo Credit: By Lucas Cranach the Elder - Public Domain, https://commons.wikimedia.org/w/index.php?curid=25632673

Markgraf Friedrich der Ältere von Brandenburg-Ansbach —
Photo Credit: By unbekannter Künstler - Die Markgrafen von Brandenburg-Ansbach, Public Domain, https://commons.wikimedia.org/w/index.php?curid=42342706

Ölgemälde von Kurfürst Johann Cicero von Brandenburg —
Photo Credit: By Unknown author -Public Domain, https://commons.wikimedia.org/w/index.php?curid=41051784

William Robert Woodman —
Photo Credit: By http://www.golden-dawn.com/eu/displaycontent.aspx?pageid=136-golden-dawn-biographies, GPL, https://commons.wikimedia.org/w/index.php?curid=7658887