Image: greatest nations p03 565
The Beginning of the Papal Struggle (The Young Emperor Henry IV. Vows to Drag Pope Gregory from His Throne) - As staged at the Berlin Theatre in the play by E. von Wildenbriich. - from the book: The Story of the Greatest Nations 3, by Edward S. Ellis and Francis Horne, 1901-1914.
- من كتاب الأمم الكبرى 3، إدوارد إس. إيليس وتشارلز فرانسيس هورن، 1901-1914 م.
