Two Structures with the same Ancestor?

If Yes, the ancestor is the original structure of Kazan's Kul-Sharif Mosque. Ivan the Terrible destroyed this original mosque after conquering Kazan, but used much of its design for St. Basil's Basilica which he built in Moscow.

    St. Basil's Basilica in Moscow


    Kul-Sharip Mosque in Kazan


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