Year 1020 (MXX) was a leap year starting on Friday of the Julian calendar.

Events

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• Summer Emperor Henry II conducts his third Italian military campaign. He makes plans to invade the south, but remains non-committal.

• June 15 Byzantine troops under Catepan Basil Boioannes (supported by his ally Prince Pandulf IV) capture the fortress of Troia.

• The French city of Saint-Germain-en-Laye is founded by King Robert II (the Pious).

• King Canute the Great codifies the laws of England (approximate date).

• King Gagik I of Armenia is succeeded by Hovhannes-Smbat III.

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Births

• Almodis de la Marche, French noblewoman (d. 1071)

• Beatrice of Bar, French duchess and regent (d. 1076)

• Benno II, German bishop and architect (approximate date)

• Bernard of Menthon, French priest and saint (d. 1081)

• Conrad I (or Cuno), duke of Bavaria (approximate date)

• Filarete of Calabria, Sicilian saint (approximate date)

• Gonzalo Sánchez, Spanish nobleman (approximate date)

• Gunhilda of Denmark, German queen (approximate date)

• Guo Xi, Chinese landscape painter (approximate date)

• Hallvard Vebjørnsson, Norwegian saint (approximate date)

• Kunigunde of Altdorf, German noblewoman (approximate date)

• Maria of Gaeta, Italian noblewoman (approximate date)

• Osbern Giffard, Norman nobleman (approximate date)

• Otto of Nordheim, duke of Bavaria (approximate date)

• Stephen IX, pope of the Catholic Church (approximate date)

• Su Song, Chinese statesman and scientist (d. 1101)

• Sweyn Godwinson, English nobleman (approximate date)

• Vladimir Yaroslavich, Grand Prince of Kiev (d. 1052)

• William I (the Great), count of Burgundy (d. 1087)

• William Busac, English nobleman (jure uxoris) (d. 1076)

• William FitzOsbern, 1st Earl of Hereford (approximate date)

• William of Poitiers, French priest and writer (d. 1090)

• Wulfhild of Norway, duchess consort of Saxony (d. 1071)

• Zhang Zai, Chinese philosopher and cosmologist (d. 1077)

Deaths

• June 12 Lyfing, archbishop of Canterbury

• June 15 Dattus (or Datto), Lombard rebel leader

• August 16 Zhou Huaizheng, Chinese eunuch

• Al-Mu'ayyad Ahmad, Muslim imam (b. 944)

• Al-Sijzi, Persian mathematician (approximate date)

• Bernard I (Taillefer), Spanish nobleman

• Bouchard II (the Bearded), French nobleman (b. 975)

• Einar Sigurdsson, Norse Viking nobleman

• Ferdowsi, Persian poet and author (b. 940)

• Gagik I, king of Bagratid Armenia (approximate date)

• Gerald I (Tranche-Lion), French nobleman

• Gojslav, king of Croatia (approximate date)

• Leif Ericson, Norse Viking explorer (approximate date)

• Melus of Bari, Lombard nobleman and rebel leader

• Radim Gaudentius, Polish archbishop (b. 970)

• Stephen I of Vermandois, French nobleman

• Trdat the Architect, Armenian chief architect

References