977 CE
Boris II, dethroned emperor (tsar) of Bulgaria, and his brother Roman manage to escape from captivity in Constantinople. They reach the Bulgarian border, but Boris is killed by mistake by the border guards. Roman is crowned as new ruler, although leadership and the control of the army remain in the hands of General Samuel (a member of the Cometopuli Dynasty). Otto II appoints his cousin Charles, illegitimate son of the late King Louis IV (d'Outremer), as duke of Lorraine. King Lothair III – who claims the duchy as his own territory – declares war to the Holy Roman Empire. He leads an expedition into Lorraine accompanied by Hugh Capet. Lothair crosses the Meuse River and takes Aachen, sacking the imperial palace. Otto II is unable to take Paris, he lifts the siege of the capital and withdraws. A Frankish army under Lothair III pursues and defeats the imperial rearguard while crossing the Aisne River. Otto escapes and is forced to take refuge at Aachen with Charles, after his supplies are destroyed.
Conflict & Security
- August – Otto II appoints his cousin Charles, illegitimate son of the late King Louis IV (d'Outremer), as duke of Lorraine. King Lothair III – who claims the duchy as his own territory – declares war to the Holy Roman Empire. He leads an expedition into Lorraine accompanied by Hugh Capet. Lothair crosses the Meuse River and takes Aachen, sacking the imperial palace.source
- November 30 – Otto II is unable to take Paris, he lifts the siege of the capital and withdraws. A Frankish army under Lothair III pursues and defeats the imperial rearguard while crossing the Aisne River. Otto escapes and is forced to take refuge at Aachen with Charles, after his supplies are destroyed.source
- Summer – 'Adud al-Dawla, ruler (shah) of the Buyid Dynasty, drives the Hamdanids out of Mosul and tries to unify the country. Abu Taghlib is forced to flee to the Byzantine city of Antzitene.source
- Emir Sa'd al-Dawla recovers his capital, Aleppo, from the ghulam Bakjur, who receives the governorship of Homs as compensation.source
- Fall – Otto II invades the West Frankish Kingdom accompanied by Charles and ravages the cities of Reims, Soissons (where he halts at the Abbey of Saint Médard for devotions) and Laon. Lothair III escapes and flees to Paris, where he is besieged by imperial forces. Charles is proclaimed 'King of the Franks' by Dietrich I, bishop of Metz, at Laon.source
Religion & Belief
- The Imam Ali Mosque, located in Najaf (modern Iraq), is completed by 'Adud al-Dawla.source
- War of the Three Henries: Henry III (the Younger), duke of Carinthia, gets involved in a conflict over the Patriarchate of Aquileia (March of Verona) in northeastern Italy. Emperor Otto II (the Red) decides in Aquileia's favor, prompting Henry III to go into revolt. He joins forces with Henry II (the Wrangler), duke of Bavaria. They are both joined by Henry I, bishop of Augsburg.source
- Æthelwold, bishop of Winchester, rebuilds the western end of the Old Minster, with twin towers and no apses (approximate date).source
Crime & Justice
- May – Boris II, dethroned emperor (tsar) of Bulgaria, and his brother Roman manage to escape from captivity in Constantinople. They reach the Bulgarian border, but Boris is killed by mistake by the border guards. Roman is crowned as new ruler, although leadership and the control of the army remain in the hands of General Samuel (a member of the Cometopuli Dynasty).source
- King Kenneth II of Scotland kills his rival Amlaíb mac Illuilb (or Amlaíb), brother of the late King Cuilén, to establish himself as Cuilén's successor.source
Climate & Environment
- Spring – Sabuktigin, a Samanid general, succeeds his father-in-law Alp-Tegin as governor of Ghazna (modern Afghanistan). He enlarges his dominions and founds the Ghaznavid Dynasty.source
Births
Deaths
- March 1 – Rudesind, Galician bishop (b. 907)source
- November 8 – Ibn al-Qūṭiyya, Andalusian historiansource
- December 20 – Fujiwara no Kanemichi, Japanese statesman (b. 925)source
- Kamo no Yasunori, Japanese spiritual advisor (b. 917)source
- Gisulf I, prince of Salerno (approximate date)source
- Ivar of Limerick, Norse Viking kingsource
- Dobrawa, duchess consort of the Polanssource
- Bisutun, ruler of the Ziyarid Dynastysource
- Boris II, emperor of the Bulgarian Empiresource
- Peter, Byzantine eunuch generalsource
- Amlaíb mac Illuilb, king of Alba (Scotland)source
- Guo Zhongshu, Chinese painter and calligraphersource
- Ashot III (the Merciful), king of Armeniasource