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Foto: See page for author, Public domain, via Wikimedia Commons
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Foto: Flickr
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Cisár Otto prináša pápežské poklady Jánovi. Foto: Profimedia
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Otto I. Foto: Look and Learn
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Lateránsky palác. Foto: Peter Clarke, CC BY-SA 3.0, via Wikimedia Commons
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Foto: Wikimedia Commons
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Dekadencia v Ríme. Foto: Thomas Couture, Public domain, via Wikimedia Commons