Year 964 ( CMLXIV) was a leap year starting on Friday of the

Julian calendar The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts ...

Events

Byzantine Empire

* Arab–Byzantine War: Emperor Nikephoros II continues the reconquest of south-eastern

Anatolia Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...

(modern

Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...

). He recaptures

Cyprus Cyprus (), officially the Republic of Cyprus, is an island country in the eastern Mediterranean Sea. Situated in West Asia, its cultural identity and geopolitical orientation are overwhelmingly Southeast European. Cyprus is the List of isl ...

, and reorganizes the conquered lands into new themes. In the summer, they take the fortress cities of

Anazarbus Anazarbus, also known as Justinopolis (, medieval Ain Zarba; modern Anavarza; ), was an ancient Cilician city. Under the later Roman Empire, late Roman Empire, it was the capital of Cilicia Secunda. Roman emperor Justinian I rebuilt the city ...

and

Adana Adana is a large city in southern Turkey. The city is situated on the Seyhan River, inland from the northeastern shores of the Mediterranean Sea. It is the administrative seat of the Adana Province, Adana province, and has a population of 1 81 ...

. Byzantine troops under General

John Tzimiskes John I Tzimiskes (; 925 – 10 January 976) was the senior Byzantine emperor from 969 to 976. An intuitive and successful general who married into the influential Skleros family, he strengthened and expanded the Byzantine Empire to inclu ...

besiege Mopsuestia, but with the coming of winter he is forced to retreat to Caesarea.W. Treadgold. ''A History of the Byzantine State and Society,'' p. 948. *

October 24 Events Pre-1600 *AD 69 – In the Second Battle of Bedriacum, troops loyal to Vespasian defeat those of Emperor Vitellius. * 1260 – Chartres Cathedral is dedicated in the presence of King Louis IX of France. * 1260 – Afte ...

– 25 –

Siege of Rometta The siege of Rometta was a successful siege of the Byzantine city of Rometta, in northeastern Sicily, by the Kalbids on behalf of the Fatimid Dynasty, that took place between 963 and 965 and marked the conclusion of the Muslim conquest of Sici ...

: Nikephoros II sends an expedition to

Sicily Sicily (Italian language, Italian and ), officially the Sicilian Region (), is an island in the central Mediterranean Sea, south of the Italian Peninsula in continental Europe and is one of the 20 regions of Italy, regions of Italy. With 4. ...

. The Byzantine army (40,000 men) is sent to break the Muslim siege at

Rometta Rometta (Sicilian language, Sicilian: ''Ramietta'') is a ''comune'' (municipality) in the Metropolitan City of Messina in the Italy, Italian region Sicily, located about east of Palermo and about west of Messina. It was the last bastion of Sic ...

, and to regain Sicily for the

Byzantine Empire The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...

. For two days a battle takes place in the area between the beach and the besieged citadel of Rometta. The

Saracens file:Erhard Reuwich Sarazenen 1486.png, upright 1.5, Late 15th-century History of Germany, German woodcut depicting Saracens ''Saracen'' ( ) was a term used both in Greek language, Greek and Latin writings between the 5th and 15th centuries to ...

(under Al-Hasan ibn Ammar) manage to defeat the Byzantine relief force.

Europe

* Spring – King Adalbert II returns to the mainland of

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

, and occupies the environs of

Spoleto Spoleto (, also , , ; ) is an ancient city in the Italian province of Perugia in east-central Umbria on a foothill of the Apennines. It is south of Trevi, north of Terni, southeast of Perugia; southeast of Florence; and north of Rome. H ...

. Emperor

Otto I Otto I (23 November 912 – 7 May 973), known as Otto the Great ( ) or Otto of Saxony ( ), was East Francia, East Frankish (Kingdom of Germany, German) king from 936 and Holy Roman Emperor from 962 until his death in 973. He was the eldest son o ...

('the Great') leaves

Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...

with his army, and lays

siege A siege () . is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecrafts or poliorcetics) is a form of constant, low-intensity conflict charact ...

to the fortress city of

. * Otto I proceeds on campaign in Italy, remaining in the environs of

Lucca Città di Lucca ( ; ) is a city and ''comune'' in Tuscany, Central Italy, on the Serchio River, in a fertile plain near the Ligurian Sea. The city has a population of about 89,000, while its Province of Lucca, province has a population of 383,9 ...

. In the fall he leaves plague-wracked

Tuscany Tuscany ( ; ) is a Regions of Italy, region in central Italy with an area of about and a population of 3,660,834 inhabitants as of 2025. The capital city is Florence. Tuscany is known for its landscapes, history, artistic legacy, and its in ...

, and is forced to retreat to

Liguria Liguria (; ; , ) is a Regions of Italy, region of north-western Italy; its Capital city, capital is Genoa. Its territory is crossed by the Alps and the Apennine Mountains, Apennines Mountain chain, mountain range and is roughly coextensive with ...

. His rearguard is attacked by Adalbert II.

By topic

Religion

* February – Pope John XII returns with his supporters to Rome. He convenes a synod that deposes Antipope Leo VIII who finds refuge at the court of Otto I. John dispatches a delegation under Otgar, bishop of

Speyer Speyer (, older spelling ; ; ), historically known in English as Spires, is a city in Rhineland-Palatinate in the western part of the Germany, Federal Republic of Germany with approximately 50,000 inhabitants. Located on the left bank of the r ...

, to negotiate an agreement. *

May 14 Events Pre-1600 * 1027 – Robert II of France Robert II ( 972 – 20 July 1031), called the Pious () or the Wise (), was List of French monarchs, King of the Franks from 996 to 1031, the second from the Capetian dynasty. Crowned Juni ...

–

Pope John XII Pope John XII (; 14 May 964), born Octavian, was the bishop of Rome and ruler of the Papal States from 16 December 955 to his death in 964. He was related to the counts of Tusculum, a powerful Roman family which had dominated papal politics for ...

dies (rumoured to be by apoplexy, or at the hands of a cuckolded husband, during an illicit sexual liaison) after a 9-year reign. The Romans elect

Benedict V Pope Benedict V (; died 4 July 965) was the pope and ruler of the Papal States from 22 May to 23 June 964, in opposition to Pope Leo VIII, Leo VIII. He was overthrown by Emperor Otto I. His brief pontificate occurred at the end of a period known a ...

, who is acclaimed by the city militia. He begins his pontificate as the 131st

pope The pope is the bishop of Rome and the Head of the Church#Catholic Church, visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff, or sovereign pontiff. From the 8th century until 1870, the po ...

of the

Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

. *

June 23 Events Pre-1600 * 229 – Sun Quan proclaims himself emperor of Eastern Wu. * 1266 – War of Saint Sabas: In the Battle of Trapani, the Venetians defeat a larger Genoese fleet, capturing all its ships. * 1280 – The Spanish ...

– Benedict V is deposed and ecclesiastically degraded after Otto I besieges Rome. He starves the Romans into submission and restores Leo VIII to the papal

throne A throne is the seat of state of a potentate or dignitary, especially the seat occupied by a sovereign (or viceroy A viceroy () is an official who reigns over a polity in the name of and as the representative of the monarch of the territory ...

Science

* Abd al-Rahman al-Sufi, a Persian

astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...

, writes the ''

Book of Fixed Stars ''The Book of Fixed Stars'' ( ', literally ''The Book of the Shapes of Stars'') is an Astronomy, astronomical text written by Abd al-Rahman al-Sufi (Azophi) around 964. Following Graeco-Arabic translation movement, the translation movement in the ...

Births

* Bertha of Burgundy, Frankish queen consort (d.

1010 Year 1010 ( MX) was a common year starting on Sunday of the Julian calendar. Events By place Africa * The Nile river in Egypt freezes over. Asia * The Lý dynasty is established in Vietnam (or 1009), and moves the capital to Thăn ...

) * Heonae, Korean queen consort and

regent In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...

(d. 1029) * Liu Wenzhi, official of the

Song Dynasty The Song dynasty ( ) was an Dynasties of China, imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Fiv ...

(d. 1028)

Deaths

– John XII, pope of the

* July 3 – Henry I, Frankish

nobleman Nobility is a social class found in many societies that have an aristocracy. It is normally appointed by and ranked immediately below royalty. Nobility has often been an estate of the realm with many exclusive functions and characteristics. T ...

and archbishop *

November 5 Events Pre-1600 *1138 – Lý Anh Tông is enthroned as emperor of Vietnam at the age of two, beginning a 37-year reign. * 1499 – The '' Catholicon'', written in 1464 by Jehan Lagadeuc in Tréguier, is published; this is the first B ...

– Fan Zhi, chancellor of the Song Dynasty * December 8 – Zhou (the Elder), Chinese queen consort * Al-Hasan ibn Ali al-Kalbi, Fatimid nobleman and

emir Emir (; ' (), also Romanization of Arabic, transliterated as amir, is a word of Arabic language, Arabic origin that can refer to a male monarch, aristocratic, aristocrat, holder of high-ranking military or political office, or other person po ...

* Fujiwara no Anshi, empress consort of

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

(b. 927) * Godfrey I, count and vice-

duke Duke is a male title either of a monarch ruling over a duchy, or of a member of Royal family, royalty, or nobility. As rulers, dukes are ranked below emperors, kings, grand princes, grand dukes, and above sovereign princes. As royalty or nobi ...

Lower Lorraine The Duchy of Lower Lotharingia, also called Northern Lotharingia, Lower Lorraine or Northern Lorraine (and also referred to as '' Lothier'' or '' Lottier''

* Khosrov of Andzev, Armenian monk and

poet A poet is a person who studies and creates poetry. Poets may describe themselves as such or be described as such by others. A poet may simply be the creator (thought, thinker, songwriter, writer, or author) who creates (composes) poems (oral t ...

* Toichleach ua Gadhra, king of Gailenga (

Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...

)

References

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