Author:Gregory IV

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Pope Gregory IV
(?–844)
Was Pope from December 20, 827 to January 11, 844

Works by Gregory IV[edit]

Works about Gregory IV[edit]

  • "Gregory IV." in the Encyclopædia Britannica, 9th ed. 1880.
  • "Gregory IV." in the Encyclopædia Britannica, 11th ed. 1911.