What was the main controversy Pope Sergius III had with eastern patriarchs?
Filioque controversy
Ordination dispute
Lateran Palace restoration
Holy Roman Emperorship
Answer
Pope Sergius III was involved in the filioque controversy with eastern patriarchs. This dispute centered around the addition of the phrase "and the Son" (filioque in Latin) to the Nicene Creed, which was a point of contention between the Western and Eastern Churches.
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