House of Flanders

House of Flanders
Arms of the County of Flanders
Estates	Flanders, Hainaut, Constantinople, Boulogne
Titles	Count of Flanders Count of Hainaut Latin Emperor of Constantinople Count of Boulogne King of Jerusalem Count of Namur
Founded	863
Founder	Baldwin I, Count of Flanders
Final ruler	Margaret II, Countess of Flanders
Dissolution	1280
Ethnicity	Flemish, French
Cadet branches	House of Hainaut House of Boulogne

The House of Flanders - also called the Baldwins (Lat. Balduini, Fr. Baudouinides) - was founded by Baldwin I Iron Arm, husband of Judith, daughter of Charles the Bald.

From 1051, the House of Flanders also reigned over the County of Hainaut, with Baldwin I of Hainaut. In 1119, on the death of Baldwin VII, the House of Flanders ceased to rule in Flanders. But in 1191, the House of Flanders recovered the title of Count of Flanders with Baldwin VIII (Baldwin V of Hainaut). The dynasty established the Latin Empire of Constantinople during the Fourth Crusade. It also ruled briefly the County of Namur (1188-1212). The House of Flanders became extinct in 1280 with the death of Margaret II.

A cadet branch, the House of Boulogne, ruled over the County of Boulogne. Members of this house joined the First Crusade, established the Kingdom of Jerusalem, and produced its first kings.

Genealogy

• Baldwin I Iron Arm, Count of Flanders († 879)
  • Baldwin II the Bald, Count of Flanders († 918)
    • Arnulf I the Great, Count of Flanders († 965)
      • Elftrude, born circa 932, married in 964 to Siegfried, Count of Guînes († 965)
      • Hildegarde (934 † 990), married in 943 to Dirk II, Count of Holland (930 † 988)
      • Egbert (937 † 953)
      • Liutgarde (938 † 964), married in 950 to Wichmann IV, Count of Hamaland and Ghent.
      • Baldwin III, Count of Flanders († 962)
        • Arnulf II, Count of Flanders († 988)
          • Mathilda († 995 or before)
          • Baldwin IV the Bearded (v.980 † 1035), Count of Flanders († 1035)
            • Baldwin V of Lille, Count of Flanders († 1067)
              • Baldwin VI the Good, (1030 - 1070), Count of Flanders and of Hainaut
                • Arnulf III of Flanders (1055 † 1071), Count of Flanders and Hainaut
                • Baldwin II of Hainaut (1056 † 1098), Count of Hainaut
                  • Baldwin III of Hainaut (1088 † 1120), Count of Hainaut
                    • Baldwin IV the Builder (1108 † 1171), Count of Hainaut
                      • Agnes of Hainaut, married Ralph I, Lord of Coucy
                      • Baldwin V of Hainaut (1150 † 1195), Count of Hainaut
                        • Isabella of Hainault (°1170- †1190), married Philip II of France
                        • Baldwin VI of Hainaut (°1171- †1205), Count of Flanders and Hainaut, Latin Emperor of Constantinople
                          • Joan (1199-1200 † 1244), Countess of Flanders and of Hainaut
                          • Margaret II (ca.1202 † 1280), Countess of Flanders and of Hainaut
                        • Yolanda (°1175- †1219), married Peter II of Courtenay, Latin Emperor of Constantinople
                        • Philip the Noble, Marquis of Namur (°1175- †1212)
                        • Henry (°1176- †1216), Latin Emperor of Constantinople
                        • Sybille (°1179- †1217), married to Guichard IV, Sire of Beaujeu
                        • Eustace (†1219), regent of the Kingdom of Thessalonica
              • Matilda (1032 - 1083), married in 1053 to William the Conqueror
              • Robert the Frisian, (1033 - 1093), Count of Flanders from 1071 to 1093
                • Robert II, Count of Flanders from 1093 to 1111
                  • Baldwin VII (1093-1119), Count of Flanders
                  • Guillaume (1094-1109)
                  • Philippe (1095-) (died young)
                • Adela of Flanders († 1115), married firstly Canute IV of Denmark. Married secondly Roger Borsa, Duke of Apulia.
                  • Charles I, Count of Flanders (1084 – 1127)
                • Gertrude (1080 - † 1117), married to Henry III († 1095) Count of Louvain and Brussels, then in 1096 to Theodoric II, Duke of Lorraine († 1115).
                • Philip of Loo, whose illegitimate son William of Ypres was a claimant to the county of Flanders.
                • Ogive, abbess of Mesen.
            • Judith of Flanders, Countess of Northumbria (1037 † 1094), married in 1058 to Tostig Godwinson († 1066), Earl of Northumbria, then in 1071 to Welf I, Duke of Bavaria († 1101)
    • Adelolf († 933), Count of Boulogne
      • Arnulf II († 971), Count of Boulogne
        • Arnulf III († 990), Count of Boulogne
          • Baldwin II († 1025), Count of Boulogne
            • Eustace I (v. 995 † 1049), Count of Boulogne
              • Eustace II († 1087), Count of Boulogne
                • Eustace III, Count of Boulogne (1056-1125)
                • Godfrey of Bouillon (1058-1099), Duke of Lower Lorraine, a leader of the First Crusade and "Advocate of the Holy Sepulchre"
                • Baldwin I of Jerusalem (1065-1118), accompanied his brother to the Holy Land, became Count of Edessa and then King of Jerusalem
              • Godfrey († 1095), Bishop of Paris
              • Lambert II, Count of Lens († 1054)
              • Gerberge († 1049), married Frederick, Duke of Lower Lorraine (1003 † 1065)
          • Arnulf IV, Count of Ternois

Arms

Arms of the House of Flanders

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Count of Flanders (attributed)

Count of Flanders

Count of Hainaut (Ancient)

Latin Emperor of Constantinople

Arms of the House of Boulogne

Count of Boulogne

King of Jerusalem