Page "Liber Pontificalis" Paragraph 11

Pope Adrian II ( 867 – 872 ) is the last pope for which there are extant manuscripts of the original Liber Pontificalis: the biographies of Pope John VIII, Pope Marinus I, and Pope Adrian III are missing and the biography of Pope Stephen V ( 885 – 891 ) is incomplete.

From Stephen V through the 10th and 11th centuries, the historical notes are extremely abbreviated, usually with only the pope's origin and reign duration.