The real shame is that Franz wasn't ignorant of the third Rome Idea.
The 1963 book (no doubt authored by Freddy). Babylon The Great Has Fallen-God's Kingdom Rules" devoted about 8 pages to the history of the Russian Orthodox Church.
Chapter 21 was titled Babylon the Great and Heavenly Zion in Revelation.
On page 486 or 487 there is the bold heading A THIRD ROME?
It goes on to discuss this premise over the next few pages.
Here are some exerpts:
When, in 1453, Constantinople, the seat of the Patriarch, fell to the Mohammedans, it
affected Russia religiously. Says The Encyclopedia Americana, Volume 24, page 38b: "The idea of the establishment of a Russian patriarchate was a natural consequence of the downfall the Byzantine Empire and of the growth of Muscovite Russia. Moscow was hailed as the Third Rome."
In 1945 the Russian Orthodox Church Council was held in a suburb of communist
Moscow, in a magnificent ecclesiastical manner. Naturally the Church leaders were filled with pride and hope for a better future of their religious organization, and Russian messianic ideas that had been entertained for centuries were expressed. For instance, Metropolitan Benjamin, at that time the Exarch of the Moscow Patriarchate for North America, said that the Russian capital Moscow might yet become the "Third Rome" and that in the future Moscow would be plainly the meeting place for "the entire church." He went on to say that Moscow would perhaps become the location of an advisory central organ for linking all Orthodox Churches all over the world. Official Soviet circles sympathized with such ideas, for they favored a Russian Orthodox Church imperialism in connection with which their political capital Moscow would become the most important ecclesiastical center of the world.
In a footnote they quote Walter Kolarz, In his book Religion in the Soviet Union, page 56, of its initial 1961 edition.