Jan 11 On this day in history michael I Rhangabes, Byzantine Emperor
Jan 25 Gregory IV begins & ends his reign as Catholic Pope on this day in history.
Jan 25 Gregory IV begins &ends his reign as Catholic Pope in the year 0844.
Jan 25 Pope Gregory IV on this day in history.
Jan 11 On this day in history death of michael I Rhangabes, Byzantine Emperor
Jan 25 In the year 0844 death of pope Gregory IV
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Important Dates And Events In History - Hisdates.Com