Baldwin V of Flanders (died September 1, 1067) was Count of Flanders from 1036 until his death. September 1 is the 244th day of the year (245th in leap years) in the Gregorian calendar. ... Events Constantine X emperor of the Byzantine Empire dies. ... The counts of Flanders ruled over the county of Flanders from the 9th century. ... Emperor Go-Suzaku ascends the throne of Japan. ...

He was the son of Baldwin IV of Flanders, who died in 1035. He, in turn, was a descendant of Aelfthryth (Elfrida), daughter of Alfred the Great, Saxon King of England. Baldwin IV of Flanders (980 – May 30, 1036), known as the Bearded, was Count of Flanders from 988 until his death. ... Aelfthryth, also known as Elfrida, (d. ... Alfred (also Ælfred from the Old English: Ælfrēd) (c. ...

In 1028 Baldwin married Adèle, daughter of King Robert II of France; at her instigation he rebelled against his father but in 1030 peace was sworn and the old count continued to rule until his death. Events November 12 - Dying Emperor Constantine VIII of the Byzantine Empire marries his daughter Zoe of Byzantium to his chosen heir Romanus Argyrus. ... Adela Capet, Adèle of France or Adela of Flanders, known also as Adela the Holy or Adela of Messines; (born in 1009 or 1014 – died at Messines 8 January 1079) was the second daughter of Robert II (the Pious), and Constance of Arles. ... Robert II the Pious (French: Robert II le Pieux) (March 27, 972 – July 20, 1031) was King of France from 996 to 1031. ... Events July 29 - Battle of Stiklestad in Norway. ...

During a long war (1046–1056) as an ally of Godfrey the Bearded, Duke of Lorraine, against the Holy Roman Emperor Henry III, he initially lost Valenciennes to Hermann of Hainaut. However, when the latter died in 1049 Baldwin married his son Baldwin VI to Herman's widow Richildis and arranged that the sons of her first marriage were disinherited, thus de facto uniting the Count of Hainaut with Flanders. Upon the death of Henry III this marriage was acknowledged by treaty by Agnes de Poitou, mother and regent of Henry IV. // Events First contact between the Byzantine Empire and the Seljuks. ... Events Creation of the Crab Nebula observed by a Chinese astronomer Anselm of Canterbury leaves Italy. ... Godfrey the Bearded can refer to two rulers: Godfrey III, Duke of Lower Lorraine, also Duke of Upper Lorraine (died 1069) Godfrey I, Duke of Brabant, also Godfrey VI, Duke of Lower Lorraine (died 1139) Category: ... It has been suggested that this article or section be merged with Lorraine (province). ... The Holy Roman Emperor was, with some variation, the ruler of the Holy Roman Empire, the predecessor of modern Germany, during its existence from the 10th century until its collapse in 1806. ... Henry III, from a miniature of 1040. ... Events Leo IX becomes pope. ... The virtually independent county of Hainaut emerged from chaotic conditions at the end of the 9th century as a semi-independent state, at first a vassal of the crown of Lotharingia. ... Agnes of Poitou or Empress Agnes (c. ... HEINRIC·IMP[ERATOR], Emperor Henry Henry IV (November 11, 1050 – August 7, 1106) was King of Germany (Holy Roman Empire) from 1056 and Emperor from 1084, until his abdication in 1105. ...

From 1060 to 1067 Baldwin was the co-Regent with Anne of Kiev for his nephew-by-marriage Philip I of France, indicating the importance he had acquired in international politics. Events May - The Norman leader Robert Guiscard conquers Taranto. ... Regent, from the Latin, a person selected to administer a state because the ruler is a minor or is not present or debilitated. ... Princess Anne of Kiev or Anna Yaroslavna (b. ... Philip I (French: Philippe Ier) (May 23, 1052 – July 29, 1108) was King of France from 1060 to 1108. ...

Baldwin and Adèle had four children:

• Baldwin VI, 1030-1070
• Matilda, c.1031-1083 who married William the Conqueror
• Robert I of Flanders, c.1033–1093
• Henry of Flanders c.1035

Baldwin VI of Flanders (died July 17, 1070) was briefly Count of Flanders, from 1067 to 1070. ... Matilda of Flanders (c. ... William I of England (c. ... Robert I of Flanders, known as Robert the Frisian, was count of Flanders from 1070 to 1092. ... Events Benedict IX becomes pope. ... // Events Donald III of Scotland comes to the throne of Scotland. ... Events Harthacanute becomes king of Denmark. ...

References

• Tanner, Heather J, Families, Friends and Allies: Boulogne and Politics in Northern France and England, C.879-1160