AD 858–867

Nicholas I

He asserted papal authority over kings and eastern patriarchs more strongly than any predecessor.

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Years served
AD 858–867
Biography
Nicholas defended the indissolubility of marriage against King Lothair II, protected the missions among the Bulgarians and clashed with the patriarch Photios.
Historical context
The Carolingian order was fragmenting and eastern and western churches were drifting apart.
Major events
  • Dispute with Lothair II over his marriage
  • The Photian controversy
Historical significance
He asserted papal authority over kings and eastern patriarchs more strongly than any predecessor.

Sources and References