House of Estridsen

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House of Estridsen
Coat of arms of Danish shield (14c).svg
Parent house House of Knýtlinga (maternal)
House of Munsö (hypothetical)
Country Denmark, Norway and Sweden
Kalmar Union
Founder Sweyn II of Denmark
Current headExtinct, last monarch of this House was Margaret I
Titles King of Denmark,
Queen of Norway,
Queen of Sweden,
Duke of Schleswig,
Count of Flanders
Cadet branchesAbelslægten line (extinct 1375)

The House of Estridsen, sometimes called the Estridsen or Estrith Dynasty, was the dynasty that provided the Kings of Denmark from 1047 to 1412. The dynasty is named after its ancestor Estrid Svendsdatter. The dynasty is sometimes called the Ulfinger, after Estrid's husband, Ulf the Earl. Their family coat of arms became the coat of arms of Denmark.

Estrid Svendsdatter of Denmark, was a Danish princess and titular Queen, a Russian princess and, possibly, Duchess of Normandy by marriage. She was the daughter of Sweyn Forkbeard and perhaps Gunhild of Wenden and sister of Cnut the Great. By Ulf Jarl, she was the mother of the later King Sweyn II Estridson and Beorn Estrithson. The dynasty that ruled Denmark in 1047–1412 was named after her. She was known in Denmark as Dronning Estrid, despite the fact that she was not married to a King and not a queen regnant.

Ulf the Earl Danish nobleman

Ulf was a Danish earl (jarl) and regent of Denmark. Ulf was the father of King Sweyn II of Denmark and thus the progenitor of the House of Estridsen, which would rule Denmark from 1047 to 1375, which was also sometimes, specially in Swedish sources, referred to as the Ulfinger dynasty to honor him.

Coat of arms of Denmark national insignia of Denmark

The national coat of arms of Denmark consists of three pale blue lions passant wearing crowns, accompanied by nine red lilypads, all in a golden shield. It is historically the coat of arms of the House of Estridsen, the dynasty which provided the Kings of Denmark between 1047 and 1412. The current design was introduced in 1819, under Frederick VI. Previously, there had been no distinction between the "national" and the "royal" coat of arms. Since 1819, there has been a more complex royal coat of arms of Denmark (kongevåben) separate from the national coat of arms (rigsvåben).



The name of the Estridsen dynasty recalls their acquisition of the Danish crown through the marriage of Ulf the Earl to Estrid Svendsdatter of the House of Knýtlinga, daughter of Sweyn Forkbeard and sister of Cnut the Great. Later genealogies trace the family from Jomsviking leader Styrbjörn the Strong, a scion of the Swedish royal family, who are in turn given a descent from legendary King Sigurd Hring, regarded as mythical by most modern historians. The reliable ancestry traces no earlier than Ulf's own father, the obscure Thorgil Sprakling.

House of Knýtlinga ruling royal house in Middle Age Scandinavia and England

The Danish House of Knýtlinga was a ruling royal house in Middle Age Scandinavia and England. Its most famous king was Cnut the Great, who gave his name to this dynasty. Other notable members were Cnut's father Sweyn Forkbeard, grandfather Harald Bluetooth, and sons Harthacnut, Harold Harefoot, and Svein Knutsson. It has also been called the House of Canute, the House of Denmark, the House of Gorm, or the Jelling dynasty.

Sweyn Forkbeard King of Denmark, England, and Norway

Sweyn Forkbeard was king of Denmark from 986 to 1014. He was the father of King Harald II of Denmark, King Cnut the Great and Queen Estrid Svendsdatter.

Cnut the Great 10th and 11th-century King of Denmark, Norway, and England

Cnut the Great, also known as Canute, whose father was Sweyn Forkbeard, was King of Denmark, England and Norway; together often referred to as the North Sea Empire. Yet after the deaths of his heirs within a decade of his own, and the Norman conquest of England in 1066, this legacy was lost. He is popularly invoked in the context of the legend of King Canute and the tide, which usually misrepresents him as a deluded monarch believing he has supernatural powers, contrary to the original legend which portrays a wise king who rebuked his courtiers for their fawning behaviour.

The dynasty reached its peak with the Kalmar Union, when its members reigned as kings of Denmark, Norway and Sweden in personal union. The dynasty came to end in 1412 with the death of its last member Queen Margaret I. All of the subsequent monarchs of Denmarks were cognatic descendants of the House of Estridsen.

Kalmar Union former country; personal union of the three kingdoms of Denmark, Sweden and Norway

The Kalmar Union was a personal union that from 1397 to 1523 joined under a single monarch the three kingdoms of Denmark, Sweden, and Norway, together with Norway's overseas dependencies. The union was not quite continuous; there were several short interruptions. Legally, the countries remained separate sovereign states, but with their domestic and foreign policies being directed by a common monarch.

A personal union is the combination of two or more states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, would involve the constituent states being to some extent interlinked, such as by sharing some limited governmental institutions. In a federation and a unitary state, a central (federal) government spanning all member states exists, with the degree of self-governance distinguishing the two. The ruler in a personal union does not need to be a hereditary monarch.

Margaret I of Denmark Queen of Denmark

Margaret I was queen consort of Norway (1363–1380) and Sweden (1363–1364) and later ruler in her own right of Denmark, Norway and Sweden, from which later period there are ambiguities regarding her specific titles. She was the founder of the Kalmar Union, which spanned Scandinavia for over a century. Margaret was known as a wise, energetic and capable leader, who governed with "farsighted tact and caution," earning the nickname "Semiramis of the North". She was derisively called "King Breechless", one of several mean nicknames invented by her rival Albert of Mecklenburg, but was also known by her subjects as "the Lady King", which became widely used in recognition of her capabilities.

Line of descent

From Thorgil Sprakling to Eric I the Good

  1. Thorgil Sprakling
    1. Ulf the Earl, murdered in 1026, probably Jarl in England from 1017, married Estrid Svendsdatter (990/997 — 1057/1073), a daughter of Sweyn Forkbeard (c.960 – 1014) and a sister of Cnut the Great (c.985 or 995 – 1035)
      1. Sweyn II of Denmark (c.1019 – 1076 [1] [2] ), Jarl from 1042, King of Denmark from 1047
        1. Sweyn the Crusader, murdered in 1097, married Florine (d. 1097), the daughter of Odo I, Duke of Burgundy
        2. Harald III (c.1040 – 1080)
        3. Sigrid, married Gottschalk (d. 1066), a prince of the Obotrites
        4. Saint Canute IV (c.1042 – 1086), Jarl of Zealand from 1076, King of Denmark from 1080, married Adela (c.1064 – 1115), daughter of Robert I, Count of Flanders
          1. Blessed Charles the Good (1083-1127), murdered on 2 March 1127 in Bruges, Count of Flanders from 1119, married c.1119 to Margaret, daughter of Renaud II, Count of Clermont-en-Beauvaisis
          2. Cecilia (c.1085/86 – 1131), married to Erik Jarl in Västergötland
          3. Ingerid (c.1085/86 – ?), married Folke the Fat Jarl in Sweden
        5. Olaf I (c.1050 – 1095), Jarl of Southern Jutland from 1080, King of Denmark from 1086, married Ingegerd, the daughter of King Harald Hardrada of Norway
        6. Ingerid, married c.1070 to King Olaf III of Norway
        7. Eric I the Good (c.1060, Slangerup, Denmark – 10 July 1103, Paphos, Cyprus), Jarl of Zealand from 1080, King of Denmark from 1095 — for his descendants, see below
        8. Svend Tronkræver (d. 1104)
          1. Henrik Skadelår (c.1090 – 4 June 1134)
            1. Magnus II of Sweden (d. 1161), King of Sweden from 1160, married Brigida, daughter of King Harald IV Gille of Norway
            2. Canute (d. 12 March 1162), Duke of Southern Jutland from 1150, Duke of Jutland from 1157
            3. Buris (1130-1167), Duke of Southern Jutland from 1162, married c.1166 to a daughter of Herman II, Count of Winzenburg
        9. Niels, killed 25 June 1134, King of Denmark from 1104, married Margaret Fredkulla, a daughter of King Inge the Elder of Sweden
          1. Magnus I (c.1106 – 4 June 1134), Duke of Västergötland from 1125, King of Denmark from 1134, married Richeze, a daughter of Bolesław III Wrymouth
            1. Canute V (c.1129 – 9 August 1157), Duke of Jutland from 1147, co-ruler of Denmark from 1154, married in 1156 to Helena, a daughter of King Sverker I of Sweden
              1. Saint Niels (d. 1180)
              2. Valdemar (d. 18 July 1236 in Cîteaux Abbey), Bishop of Schleswig from 1182 to 1208, Archbishop of Bremen in 1192
      2. Björn (killed in 1049), Earl in England
      3. Asbjörn (d. probably 1086), Jarl in Denmark
    2. Gytha, married Godwin of Wessex; one of their children was King Harold II of England
    3. Eilaf (first mentioned 1009), Earl in England

From Eric the Good to Christopher I

  1. Eric I the Good (c.1060, Slangerup, Denmark – 10 July 1103, Paphos, Cyprus), Jarl of Zealand from 1080, King of Denmark from 1095 — for his ancestors, see above
    1. Saint Canute Lavard (March 12, 1096 – 7 January 1131), King of Southern Jutland from 1115, King of the Wends from 1129, married Ingeborg, a daughter of Mstislav I of Kiev
      1. Christina (c.1118–1139), married King Magnus IV of Norway
      2. Valdemar the Great (14 January 1131 – 12 May 1182), King of Denmark, married in 1157 to Sophia of Minsk (d. 5 May 1198), daughter of Volodar of Minsk
        1. (illegitimate) Christopher (d. 1173), Duke of Southern Jutland
        2. Sophie (d. 1208), married Siegfried III, Count of Orlamünde (d. 1206)
        3. Canute VI (1163 – 12 November 1202), King of Denmark from 1182, married in 1177 to Gertrude, daughter of Henry the Lion
        4. Valdemar II (1170 – 28 March 1241), King of Denmark from 1202, married (1) in 1205 to Dagmar, daughter of King Ottokar I of Bohemia, and (2) in 1214 to Berengeria, daughter of King Sancho I of Portugal
          1. (illegitimate) Niels, Count of Halland from 1216 — descendants: the counts of Halland, died out in 1314
          2. (illegitimate) Canute (1211 – 15 October 1260), Duke of Estonia from 1219, Duke of Blekinge from 1232, Duke of Lolland from before 1260, married Hedwig, a daughter of Swietopelk I, Duke of Pomerania — descendants: the Lords of Skarsholm, died out before 1408
          3. (1m) Valdemar (c.1209 – 28 November 1231), co-ruler of Denmark from 1215, married Eleanor, a daughter of King Afonso II of Portugal
          4. (2m) Eric IV (c.1216 – 9 August 1250), King of Denmark from 1241, married in 1239 to Jutta, a daughter of Albert I, Duke of Saxony
            1. Sophia (1241–1286), married Valdemar, King of Sweden
            2. Ingeborg (d. 1287), married King Magnus VI of Norway
            3. Jutta (1246–1286/95), mistress of Valdemar, King of Sweden, later Abbess of St. Agneta
            4. Agnes (1249–after 1290), founding Abbess of St. Agneta
          5. Sophie (1217 – 2 November 1247), married in 1230 to John I, Margrave of Brandenburg (d. 3 April 1266)
          6. Abel (1218 – 29 June 1252), King of Denmark from 1250, married Matilda of Holstein (d. 1288) — for his descendants, see below
          7. Christopher I (1219 – 29 May 1259), King of Denmark from 1252, married in 1248 to Margaret Sambiria, daughter of Duke Sambor II of Pomerelia — for his descendants, see below
        5. Ingeborg (1175 – 29 July 1236), married in 1193, to King Philip II of France (d. 14 July 1223)
        6. Helena (c.1180 – 22 November 1233), married in 1202 to Duke William of Lüneburg (d. 1213)
        7. Richeza (1190–1220), married King Eric X of Sweden (d. 1216)
    2. Harald Kesja (1080–1135), from 1102 to 1103 regent of Denmark, married Ragnhild Magnusdotter, a daughter of King Magnus III of Norway
      1. Björn Ironside (d.1134), married Catherine Ingesdotter, the daughter of King Inge I of Sweden
        1. Christina (d. 1170), married King Eric IX of Sweden (d. 18 May 1160), King of Sweden from 1156
      2. Olaf (d. c.1143), Danish anti-king
        1. (illegitimate) Harald Skrænk, leader of a peasant rebellion in Scania, c.1182
    3. Ragnhild Eriksdatter, married Hakon Sunnivasson
      1. Eric III (c.1120 – 27 August 1146), King of Denmark from 1137, married in 1155 to Lutgard, the daughter of Count Rudolf I of Stade
        1. (illegitimate) Magnus Eriksen, imprisoned 1178
    4. Eric II (c.1090 – 18 July 1137), King of Denmark from 1134, married Malmfred, a daughter of Grand Prince Mstislav I of Kiev
      1. Sweyn III (c.1125 – 23 October 1157), King of Zealand from 1147, King of Denmark from 1152, married Adela, a daughter of Conrad, Margrave of Meissen
        1. Luitgard, married Margrave Berthold I of Istria (d. 1188), Count of Andechs, from 1173 Margrave of Istria

Dukes of Schleswig (Abelslægten)

  1. Abel (1218 – 29 June 1252), King of Denmark from 1250, married Matilda of Holstein (d. 1288) — for his ancestors, see above
    1. Valdemar III (d. 1257), Duke of Duchy of Schleswig, (or, as the Danes call it, Southern Jutland) from 1253
    2. Sophie (born 1240, d. aft. 1284), married Bernhard I, Prince of Anhalt-Bernburg (ca. 1218–1287); Christian I of Denmark was their great-great-great-great-grandson, the current Queen Margaret II descends from Christian I
    3. Eric I (d. 27 May 1272), Duke of Schleswig from 1260, married Margaret, a daughter of Jaromar II, Prince of Rugia
      1. Valdemar IV (d. 1312), Duke of Schleswig from 1283, married Elisabeth, a daughter of John I, Duke of Saxony
        1. Eric II (c.1290 – 12 March 1325), Duke of Schleswig from 1312, married Adelaide, a daughter of Henry I, Count of Holstein-Rendsburg
          1. Valdemar V (1314–1364), Duke of Schleswig from 1325 to 1326 and from 1330 to 1364, King of Denmark as Valdemar III from 1326 to 1330, married Richardis, a daughter of Gunzelin VI, Count of Schwerin
            1. Valdemar (c.1338 – 1360)
            2. Henry (c.1342 – August 1375), Duke of Schleswig from 1364
          2. Helvig (d. 1374), married King Valdemar IV of Denmark (d. 24 October 1375) (see below)
          3. (illegitimate) Valdemar Eriksen Sappi (d. 1398)
        2. (illegitimate) Abel Valdemarsen — descendants: the Rynd family (died out in 1405)
      2. Margaret (d. after 1313), married Helmold III, Count of Schwerin
      3. Eric Longbone (1272–1310), Lord of Langeland, married Sophie, a daughter of Burchard VII, Burgrave of Magdeburg
    4. Abel (1252 – 2 April 1279), Lord of Langeland, married Matilda, a daughter of Gunzelin III, Count of Schwerin

From Christopher I to Margaret I

  1. Christopher I (1219 – 29 May 1259), King of Denmark from 1252, married in 1248 to Margaret Sambiria, daughter of Duke Sambor II of Pomerelia — for his ancestors, see above
    1. Eric V "Klipping" (1249 – November 22, 1286), King of Denmark from 1259, married Agnes, a daughter of John I, Margrave of Brandenburg
      1. Eric VI Menved (1274 – 13 November 1319), King of Denmark from 1286, married Ingeborg Magnusdotter (1277-1319), a daughter of King Magnus III of Sweden
      2. Christopher II (29 September 1276 – 2 August 1332), King of Denmark from 1320 to 1326 and from 1329 to 1332, married Euphemia, a daughter of Bogislaw IV, Duke of Pomerania
        1. Margaret, (1305–1340), married Louis V, Duke of Bavaria (d. 18 September 1361)
        2. Eric (1305 – 1331 or 1332), Elected King of Denmark in 1321, married Elisabeth, a daughter of Henry I, Count of Holstein-Rendsburg
        3. Otto (c.1310 – after 1341), Duke of Lolland and Estonia
        4. Valdemar IV "Atterdag" (c.1320 – 24 October 1375), King of Denmark from 1340, married Helvig, a daughter of Eric II, Duke of Schleswig (see above)
          1. Christopher (d. 11 June 1363), Duke of Lolland from 1359
          2. Ingeborg (1 April 1347 – before 16 June 1370), married Henry III, Duke of Mecklenburg (d. 24 April 1383), the grandparents of Eric of Pomerania, King of Norway as Eric III, King of Denmark as Eric VII, and King of Sweden as Eric XIII
          3. Margaret I (March 1353 – 28 October 1412), Queen regnant of Denmark from 1375 to 1385 and from 1387 to 1396, Queen regnant of Norway from 1380 to 1385 and from 1387 to 1398, Queen regnant of Sweden from 1389 to 1396, co-founder of the Union of Kalmar in 1397, married in 1363 to Haakon Magnusson (d. 1380), King of Norway from 1355 as Haakon VI, King of Sweden from 1362 to 1364 as Håkan
            1. Olaf II (1370 – 23 August 1387), King of Denmark from 1376, King of Norway from 1380, King of Denmark from 1385
        5. (illegitimate) Erik Christoffersen Løvenbalk, his male line descendants, the Løvenbalk family, died out after 1598; Frederick VIII, Duke of Schleswig-Holstein descends from him in the female line and his granddaughter married back into the Danish royal family
      3. Richeza (d. before 27 October 1318), married Lord Nicholas II of Werle (d. 1316); Christian I of Denmark was their great-great-great grandson, the current Queen Margaret II descends from Christian I
      4. Martha (d. 2 March 13041), married in 1298 to Birger Magnusson (d. 31 May 1321), King of Sweden from 1290
    2. Matilda, married Albert III, Margrave of Brandenburg-Salzwedel (d. 1300)
    3. Margaret (c.1257 – 1306), married to John II, Count of Holstein-Kiel (d. 1321)

See also

House of Olaf

The House of Olaf was a dynasty which ruled Denmark or part of Denmark in the late 9th century and early 10th century.

House of Oldenburg dynasty

The House of Oldenburg is a European dynasty of North German origin. It is one of Europe's most influential royal houses, with branches that rule or have ruled in Denmark, Iceland, Greece, Norway, Russia, Sweden, Schleswig, Holstein, and Oldenburg. The current Queen of Denmark and King of Norway, the former King of Greece, the consort of the monarch of the United Kingdom, as well as the first thirteen persons in the line of succession to the British throne, are all patrilineal members of the Glücksburg branch of this house.

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  1. Steenstrup, Johannes C. H. R. (1903). "Svend Estridsen". In Bricka, Carl Frederik. Dansk Biografisk Leksikon (in Danish). 17. Kjøbenhavn: Gyldendalske Boghandels Forlag (F. Hegel & Søn). p. 4. Retrieved 2007-02-22. Sweyn died at the royal estate Søderup in [the Duchy of] Schleswig April 28, 1076 (the Danish annals have, certainly incorrect, 1074) and was buried in Roskilde Cathedral. [S. døde paa Kongsgaarden i Søderup i Slesvig 28. April 1076 (de danske Aarbøger have, sikkert urigtig, 1074) og blev begravet i Roskilde Domkirke.]
  2. Ræder, J. G. F. (1871). "Danmark under Svend Estridsen og hans Sønner (Copenhagen, pp. 202-203)". Retrieved 2017-02-22. At Vilhelm er død før Kongen, meddeles af de ikke meget senere Skribenter Anonymus Roskild. (Lgb.I. S. 378) og Ætnothus (Lgb.III. S. 338). At fremdeles Svend Estridsen døde 1076 og ikke allerede 1074, er ligeledes hævet over enhver Tvivl; naar nu ikke destomindre en hel Række Kildeskrifter lader ham dø allerede 1074, saa synes dette at hænge sammen med det allerede tidlig opstaaede og hos Saxo opbevarede Sagn om, at Vilhelm døde faa Dage efter Kongen og af Sorg over hans Død. Det kan da tænkes , at man har draget Kongens Død tilbage til Bispens Dødsaar 1074, ligesom Nyere (t. Ex. Molbech, hist. Aarb. III S. 19) drage Bispens Dødsaar frem til 1076 for at faa Begges Dødsaar til at falde sammen." ... & ... "men derimod giver en ny Skrivelse, som Paven afsendte til Svend d. 17. April s. A. [1075], En det bestemte Indtryk, at der i Mellemtiden er foregaaet Noget, hvorved Svend har gjort sig Paven forbunden