Frederick Barbarossa with his sons Henry and Philip — from Peter of Eboli Liber ad honorem Augusti, 1196. Burgerbibliothek of Berne, Codex 120 II, fol. 143r. Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=5514123
Count Palatine Otto VIII of Wittelsbach kills Philip of Swabia — Miniature from the Sächsische Weltchronik, Northern Germany, early 14th century, Berlin Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=14639613
Philip of Swabia — Chronica Sancti Pantaleonis, Köln, Kloster St. Pantaleon, ca. 1237. Wolfenbüttel, Herzog August Library, Cod. Guelf. 74.3 Aug. 2°. Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=23244726
Philip of Swabia
Chronica Sancti Pantaleonis, Köln, Kloster St. Pantaleon, ca. 1237. Wolfenbüttel, Herzog August Library, Cod. Guelf. 74.3 Aug. 2°.
Otto IV and Pope Innocent III shake hands — Photo Credit: By Hagenau - Public Domain, https://commons.wikimedia.org/w/index.php?curid=454337
Statue of Otto IV — old city hall, Braunschweig, c. 1455 Photo Credit: By Brunswyk - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=26300881
Trifels Castle — Medieval castle at an elevation of 500 m (1,600 ft) near the small town of Annweiler, in the Palatinate region of southwestern Germany. Photo Credit: By R.Wallenstein at German Wikipedia - Own workOriginally from de.wikipedia, CC BY-SA 2.0 de, https://commons.wikimedia.org/w/index.php?curid=2232357
Trifels Castle
Medieval castle at an elevation of 500 m (1,600 ft) near the small town of Annweiler, in the Palatinate region of southwestern Germany.
Richard the Lionheart submits himself to Emperor Henry — Photo Credit: By Petrus de Ebulo - Gerd Althoff, Hans Werner Goetz, Ernst Schubert –- Menschen im Schatten der Kathedrale, Darmstadt: Primus Verlag 1998 S. 18 (Scan) Public Domain, https://commons.wikimedia.org/w/index.php?curid=6108159
Flag of Sicily — cropped Photo Credit: By Own work - Own work, File:Arms of King Manfred of Sicily.svg by User:Heralder, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=77515915