800

December 25

• Pope Leo III crowns Charles the Great (Charlemagne), Roman emperor. [1]

801

December 28

• Louis the Vrome occupies Barcelona. [1]

804

March 30

• Liudger becomes first bishop of Münster. [1]

May 19

• Alcuin of York, English scholar, dies in Tours, France, at age 69. [1]

809

March 24

• Harun al-Rashid, caliph of the Abbasid empire (786-809), dies at age 44. [1]

March 26

• Liudger, missionary/first bishop of Münster/saint, dies at about age 66. [1]

810

July 8

• Pepin, son of Charlemagne, king of Italy, dies. [1]

811

December 4

• Charles, eldest son of emperor Charles the Great, dies at about age 39. [1]

814

January 28

• Charlemagne, German emperor/Roman Emperor (800-814), dies at age 71. [1]

816

February 5

• Frankish emperor Louis grants archbishop Salzburg immunity. [1]

June 12

• Saint Leo III ends his reign as Catholic Pope. [1]

June 22

• Stephen IV begins his reign as Catholic Pope. [1]

817

January 24

• Stefanus IV [V/Colonna] dies, ending his reign as Catholic Pope (816-17). [1]
• Saint Paschal I begins his reign as Catholic Pope, succeeding Stephen IV. [1]

818

April 17

• King Bernhard I of Italy dies. [1]

820

January 20

• Abu Abdallah M ibn Idris al-Sjafi'i, Islamic (Book of Mother), dies. [1]
• The Book of Mother is published. [1]

December 25

• Leo V the Armenian, Byzantine general/Emperor (813-20), murdered. [1]

821

February 11

• Benedict of Aniane, saint, dies. [1]

823

April 5

• Pope Peschalis I crowns Lotharius I, co-emperor of France. [1]

824

February 11

• Paschal I, Italian Catholic Pope (817-24), dies. [1]

828

April 5

• Nicephorus, patriarch of Constantinopel (806-15), dies at about age 77. [1]

837

February 27

• Fifteenth recorded perihelion passage of Halley's Comet. [1]

April 10

• Comet 1P/837 F1 (Halley) approaches within 0.0334 astronomical units (AUs) of Earth, the closest in 2000 years. [1]

838

January 4

• Babak, Persian social/religious reformer, martyred. [1]

December 13

• King Pippijn I of Aquitania dies. [1]

840

March 14

• Eginhard, French nobleman/biographer (Vita Karoli Magni), dies at age 69. [1]

842

January 20

• Theophilus, Byzantine kaiser (829-42), dies. [1]

February 14

• Charles II and Louis the German sign treaty. [1]

February 19

• Medieval Iconoclastic Controversy ends as a council in Constantinople formally reinstates the veneration of icons in the churches. [1]

March 20

• Alfonso II the Chaste, king of Asturia (791-842), dies. [1]

843

March 11

• Icon worship officially re-instated in Aya Sofia Constantinople. [1]

April 19

• Judith, French empress/second wife of Louis de Vrome, dies. [1]

844

January 25

• Gregory IV begins and ends his reign as Catholic Pope. [1]

847

January 27

• Sergius II dies, ending his reign as Catholic Pope (844-847). [1]

April 10

• Saint Leo IV begins his reign as Catholic Pope. [1]

850

April 20

• Guntherus becomes bishop of Cologne. [1]

852

April 29

• Amalarius/Fortunatus/Symphosius of Metz/Lyon, bishop, dies at age 76. [1]

855

July 17

• Saint Leo IV ends his reign as Catholic Pope. [1]

September 29

• Benedict III begins his reign as Catholic Pope. [1]

856

February 4

• Hrabanus Maurus, archbishop of Mainz, dies. [1]

858

January 13

• Aethelwolf, king of Wessex (Battle at Aclea), dies. [1]

April 17

• Benedict III dies, ending his reign as Catholic Pope (855-58). [1]

April 24

• Nicolas I succeeds Benedict III as Catholic Pope. [1]

863

December 13

• Boudouin with the Iron Arm weds Charles de Kales' daughter Judith. [1]

865

February 3

• Ansgar/Anscharius/Oskar, German first (arch)bishop of Hamburg/saint, dies. [1]

866

January 10

• Lin-chi I-hsuan [J Rinzai Gigen], Zen teacher, dies. [1]

May 27

• King Ordoño I of Asturia (850-66) dies. [1]

867

February 11

• Theodora the Saint, beauty queen/empress of Byzantine, dies. [1]

November 13

• Saint Nicholas I (the Great) dies, ending his reign as Catholic Pope (858-67). [1]

December 14

• Adrian II begins his reign as Catholic Pope. [1]

869

February 14

• Cyrillus, Greek apostle of Slaves, dies. [1]

October 5

• Fourth Council of Constantinople (eighth ecumenical council) opens. [1]

870

February 28

• Eighth ecumenical council ends in Constantinople. [1]

December 31

• Skirmish at Englefield: Ethelred of Wessex beats Danish invasion army. [1]

871

January 4

• Battle at Reading: Ethelred of Wessex beats Danish invasion army. [1]

January 8

• Battle at Ashdown: Ethelred of Wessex beats Danish invasion army. [1]

January 22

• Battle at Basing: Danish invasion army beats Ethelred of Wessex. [1]

March 2

• Battle at Marton: Ethelred of Wessex beats Danish invasion army. [1]

April 23

• Ethelred I, king of Wessex/brother of Alfred the Great, dies. [1]

872

December 14

• Adrian II, Italian Pope (867-72)/last married pope, dies at about age 80. [1]
• John VIII begins his reign as Catholic Pope. [1]

875

December 16

• Ado of Vienne, French archbishop of Vienne, dies at about age 75. [1]

December 25

• Charles, the Bare, crowned emperor of Rome. [1]

876

January 31

• Charles becomes king of Italy. [1]

879

January 21

• Boudouin with the Iron Arm, Earl of Flanders, dies. [1]

April 10

• Louis II, the stutterer, King of France (877-79), dies. [1]
• Louis III crowned King of France. [1]

882

January 20

• Louis II/III the Younger, German king (876-82), dies. [1]

December 16

• John VIII dies, ending his reign as Italian Catholic Pope (872-82). [1]
• Marinus I begins his reign as Catholic Pope. [1]

883

March 8

• Albumasar [Ahmad Aboe M Gafar al-Balkhi], Arabic astronomer, dies. [1]

884

May 15

• Marinus I [Martinus II] dies, ending his reign as Catholic Pope (882-84). [1]

May 17

• Saint Adrian III begins his reign as Catholic Pope. [1]

December 12

• Carloman, co-king of France (879, 882-884), dies. [1]

885

April 6

• Methodius, Greek apostle of the slaves/archbishop of Sirmium, dies. [1]

888

January 13

• Charles III, the Fat One, King of Franconia/Roman emperor, dies. [1]
• Duke Odo becomes king of West-France. [1]

891

February 6

• Photius, Byzantine theologist/patriarch of Constantinople/saint, dies. [1]

September 1

• Northmen defeated near Louvaine, France. [1]

September 14

• Stephen V ends his reign as Catholic Pope. [1]

October 6

• Formosus begins his reign as Catholic Pope. [1]

896

February 22

• Pope Formosa crowned king Arnulf of Karinthie/French emperor. [1]

April 4

• Formosus dies, ending his reign as Catholic Pope (891-896). [1]

898

January 1

• Odo, Earl of Paris/king of France (888-898), dies at about age 39. [1]

899

December 8

• Arnulf of Carinthia, last emperor of Austria-France, dies. [1]

900

October 28

• Alfred the Great, English monarch, dies. [1] (October 26, 901 [1])

910

December 20

• Alfonso III de Great, king of Asturias, dies. [1]

911

April 14

• Sergius III, Italian Pope (904-11), dies. [1]

912

April 6

• Nottker, "the Stamelaar", benedictine monk/poet, dies at about age 71. [1]

May 12

• Leo VI Sophos, Byzantine Emperor (886-912), dies at age 45. [1]

918

March 1

• Balderik becomes bishop of Utrecht. [1]

December 21

• Conrad I, Duke of Franconia/German King (911-918), dies. [1] (December 23 [1])

919

May 12

• Duke Henry of Saxon becomes king Henry I of Oostfrankische rich. [1]

922

March 27

• Al-Hallaj al-Mughith-al-Hsayn Mansur, Persian mystic, beheaded at age 64. [1]

923

February 16

• Abu Dja'far Mohammed Djarir al-Tabari, Islamic historian, dies at age 83. [1]

924

April 7

• Emperor Berengarius I of Italy murdered. [1]

933

March 15

• Battle at Riade: German King Henry I beats Magyaren. [1]

936

January 3

• Duke Alberik II of Spoleto appoints his son Pope Leo VII. [1]

942

May 16

• Saadiah Gaon head of Talmudic Academy of Sura, dies. [1]

946

January 15

• Caliph al-Mustaqfi blinded/ousted. [1]

May 25

• Edmund the Older king of Wessex/England (939-46), dies. [1]

947

April 10

• Hugo van Arles count of Arles/king of Italy, dies. [1]

953

April 21

• Otto I the Great gives Utrecht fishing rights. [1]

955

May 16

• Alberich II, illegitimate son of Octavianus elected pope. [1]

956

February 17

• Hugo the Great earl of Paris/duke of Francia, dies at about age 55. [1]

961

May 26

• German King Otto II crowned. [1]

962

January 1

• Boudouin III count of Flanders, dies. [1]

February 2

• Pope John XII crowns German King Otto I the Great Emperor. [1]

963

March 15

• Romanus II Byzantine emperor (959-63), dies at age 25. [1]

December 6

• Leo VIII elected Pope. [1]

964

May 14

• John XII [Octavianus] Pope (955-64), dies. [1]

965

March 1

• Leo VIII Italian (anti-)Pope (963-65), dies. [1]

March 27

• Arnulf I the Elder/the Great, count of Flanders (918-65), dies. [1]

967

December 25

• John XIII crowned Otto II the Red German compassionate emperor. [1]

969

January 29

• Peter tsar of Bulgaria (927-69), dies. [1]

December 10

• Nicephorus II Phocas Byzantine co-Emperor (963-69), murdered. [1]

December 25

• Johannes I Tzimisces, crowned emperor of Byzantium. [1]

972

April 14

• Notger becomes bishop of Liege. [1]

973

January 14

• Ekkehard I monk of Saint Gallen (Vita Waltharii manu fortis), dies. [1]

January 19

• Pope Benedictus VI elected. [1]

May 7

• Otto I the Great Holy Roman Emperor (962-973), dies at age 60. [1]

974

April 25

• Ratherius of Verona/Liege bishop/abbot, dies at about age 84. [1]

975

December 27

• Balderik bishop of Utrecht (918-75), dies. [1]

976

January 10

• John I Tzimisces co-emperor of Byzantium (969-76), dies at age 51. [1]

978

March 18

• Edward the Martyr, King of Anglo-Saxons (975-78)/st, murdered at age 15. [1]
• Saint Edward the Martyr king of Anglo-Saxons (975-78) dies. [1]

979

April 14

• Challenge to throne of King Aethelred II of England. [1]

December 25

• Rotardus appointed as bishop of the kingdom. [1]

981

June 19

• Death of Saint Adalbert von Magdeburg; established Christianity in Russia in 961, Bishop of Magdeburg. [37]

983

December 7

• Otto II the Red German king/emperor (973-83), dies at about age 28. [1]

986

March 2

• Lotharius King of France (954-86), dies at age 44. [1]

987

May 21

• Louis V last Carlovingians King of France (966-987), dies. [1]

May 22

• Louis V le Faineant the Lazy, king of France (986-87), poisoned at age 20. [1]

December 30

• French King Hugo Capet crowns his son Robert the compassionate king. [1]

988

March 30

• Arnulf II count of Flanders (965-988), dies. [1]
• Boudouin IV with the Beard becomes earl of Flanders. [1]

May 6

• Dirk II West Frisian count of Holland. [1]

May 19

• Dunstan[us] English archbishop of Canterbury, dies. [1]

989

April 13

• Battle at Abydos Byzantine emperor Basilius II beats Bardas Phocas. [1]

990

January 1

• Russia adopts Julian calendar. [1]

April 23

• Ekkehart II [Palatinus] monk to St-Gallen/poet, dies. [1]

995

May 10

• Boudouin bishop of Utrecht. [1]

996

May 21

• Pope Gregory V crowns his cousin Otto III German emperor. [1]

997

April 23

• Vojtech "Adalbert" of Prague second bishop of Prague/apostle, dies at age 40. [1]

999

February 18

• Gregory V [Bruno] first German Pope, dies. [1]

April 2

• Gerbert of Aurillac elected as first French Pope. [1]

December 16

• Adelheid the Saint German empress of Otto I/saint, dies at about age 68. [1]

December 25

• Heribertus becomes bishop of Cologne. [1]