by Susan Flantzer
© Unofficial Royalty 2025
![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Carl_II_of_Sweden%2C_Carl_I_of_Norway.jpg/447px-Carl_II_of_Sweden%2C_Carl_I_of_Norway.jpg)
Wood sculpture of Karl Knutsson made posthumously by his contemporary Bernt Notke, considered to be a real likeness; Credit – Wikipedia
Born Karl Knutsson Bonde, he reigned as King Karl VIII of Sweden in 1448-1457, 1464-1465, and 1467-1470 and as King Karl I of Norway from 1449 to 1450. Karl Knutsson Bonde was born circa September 29, 1408, at Ekholmen Castle in Veckholm, Sweden. He was the son of Knut Tordsson Bonde, a knight and member of the privy council, and Margareta Karlsdotter, the only child and the heiress of Karl Ulfsson, Lord of Tofta. Karl VIII had three full siblings and several half-siblings but there is little information about them. After Karl’s father died in 1413, when Karl was just five years old, his mother married Sten Turesson Bielke. From his mother’s inheritance, Karl received the estate of Fågelvik Manor in Småland, his residence before he devoted himself to politics. Karl Knutsson traveled abroad, learned foreign languages, and studied the art of war.
In 1428, Karl married Birgitta Turesdotter Bielke (1410 – 1436), the daughter of Ture Stensson Bielke. Birgitta died eight years after her marriage.
Karl and Birgitta had two children:
- Ture Karlsson Bonde (circa 1430 – before 1447), died in his teens
- Kristina Karlsdotter Bonde (circa 1432 – 1488), married Erik Eriksson Gyllenstierna, had five children
On October 5, 1438, Karl married Katarina Karlsdotter (1418 – 1450), the daughter of nobleman Karl Ormsson Gumsehuvud. Karl and Katarina had four surviving daughters. In addition, they had four sons and one daughter with unknown names who all died in infancy or early childhood. 32-year-old Queen Katarina died in Stockholm, Sweden on September 7, 1450, one of the many people who died of the bubonic plague that year, the first time it appeared in Stockholm. She was buried at Vadstena Abbey in Vadnesta, Sweden where two of her daughters would serve as nuns.
Children of Karl and Katarina:
- Margareta Karlsdotter Bonde (1442 – 1462), unmarried
- Magdalena Karlsdotter Bonde (1445 – 1495), married Ivar Axelsson Tott, no children
- Richeza Karlsdotter Bonde (circa 1445 – ?), nun at Vadstena Abbey in Vadstena, Sweden
- Brigitta Karlsdotter Bonde (1446 – 1469), nun at Vadstena Abbey
In 1434, Karl became a member of the Privy Council of Sweden and later that year he became Lord High Constable of Sweden, one of Sweden’s highest positions. Because of the growing dissatisfaction among the Swedish nobility with Eric of Pomerania, who reigned as Eric III, King of Norway, Eric VII, King of Denmark, Eric XIII, King of Sweden, Karl was named Military Governor of the Realm in 1436. He then replaced King Eric as the elected Regent of Sweden from 1438 to 1440. Between 1439 and 1441, the nobility of Eric’s three kingdoms deposed him. Christopher of Bavaria, Eric’s nephew, the only child of his sister Catherine of Pomerania, succeeded him in all three kingdoms as Christopher III, King of Denmark, Norway, and Sweden.
On January 5, 1448, 31-year-old Christopher III, King of Denmark, Norway, and Sweden suddenly died. Christopher married 15-year-old Dorothea of Brandenburg in 1445 but the marriage was childless. Christopher’s death without an heir resulted in a succession crisis that temporarily broke up the Kalmar Union which had united the Kingdoms of Denmark, Norway, and Sweden. The Danish throne was first offered to Adolphus, Duke of Schleswig, the most prominent feudal lord of the lands subject to Danish sovereignty. Adolphus declined because of his age and recommended his nephew Christian, Count of Oldenburg. In September 1448, Christian of Oldenburg was elected King of Denmark and reigned as King Christian I.
However, in Sweden, in June 1448, Karl Knutsson, Lord High Constable of Sweden, was elected King of Sweden and reigned as King Karl VIII during three periods: 1448–1457, 1464–1465, and 1467–1470. During the time between the three periods when King Karl VIII ruled Sweden, some regents ruled Sweden and during 1457 – 1465, King Christian I was King of Sweden. See Unofficial Royalty: Kingdom of Sweden Index for a listing of the regents and their periods of rule.
In 1449, a portion of the Norwegian council elected Karl as King of Norway, and he and Katarina were crowned in Nidaros Cathedral in Trondheim, Norway on November 20, 1449. However, Christian also continued pursuing his claim to Norway. Norway was now faced with a union with Denmark or Sweden or electing a separate king, an option quickly discarded. The Norwegian Council of the Realm was divided between Christian and Karl but eventually ruled in favor of Karl. After an armed conflict between Denmark and Norway, a joint Danish-Swedish meeting decided that Karl should renounce Norway in favor of King Christian I and that the survivor of the two kings would be recognized as king in all three kingdoms. Karl reluctantly agreed with the decision. King Christian I was crowned King of Norway on August 2, 1450.
Being the king in both Denmark and Norway gave King Christian I a power advantage. However, the wars fought between Christian and Karl beginning in 1452 were not decisive. In 1457, a rebellion against King Karl VIII took place, led by Archbishop Jöns Bengtsson and Swedish nobleman Erik Axelsson Tott. Karl went into exile and the two rebellion leaders organized the election of King Christian I of Denmark as King of Sweden. Karl was able to regain the Swedish throne two more times, from 1464–65 and 1467–1470.
![](https://i0.wp.com/www.unofficialroyalty.com/wp-content/uploads/2021/12/Europe_August-5-to-18-353.jpg?resize=768%2C576&ssl=1)
The tomb of King Karl VIII in the foreground and the tomb of King Magnus III Ladulås in the background; Credit – Photo © Susan Flantzer
On May 15, 1470, 62-year-old King Karl VIII died at Tre Kronor Castle (Three Crowns Castle) in Stockholm after a short illness. He was buried at Riddarholmen Church in Stockholm where another medieval Swedish king, King Magnus III Ladulås (circa 1240 – 1290), is buried as well as the fifteen Swedish monarchs and their spouses from King Gustavus II Adolphus the Great (died 1632) to King Gustaf V (died 1950).
Karl had two children with his mistress Kristina Abrahamsdotter: a daughter Anna Karlsdotter Bond (circa 1441 – 1469), and a son Karl Karlsson Bonde (1465 – 1488). On an unknown date during the spring of 1470, a few weeks before he died, King Karl VIII married his mistress Kristina Abrahamsdotter, attempting to legitimize their son Karl and have him become the next King of Sweden. However, the Swedish nobility did not recognize the five-year-old Karl as King Karl VIII’s successor. Instead, Sten Sture the Elder, the son of Karl VIII’s half-sister Birgitta Stensdotter Bielke from the second marriage of Karl’s mother to Sten Turesson Bielke, became the Lord Regent of Sweden. He ruled from June 1, 1470 to October 6, 1497, and from November 12, 1501, until he died on December 14, 1503.
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Works Cited
- Autoren der Wikimedia-Projekte. (2005). König von Schweden und Norwegen. Wikipedia.org; Wikimedia Foundation, Inc. https://de.wikipedia.org/wiki/Karl_VIII._(Schweden)
- Bidragsgivare till Wikimedia-projekten. (2005). Katarina Karlsdotter (Gumsehuvud). Wikipedia.org; Wikimedia Foundation, Inc. https://sv.wikipedia.org/wiki/Katarina_Karlsdotter_(Gumsehuvud)
- Bidragsgivare till Wikimedia-projekten. (2002). kung av Sverige 1448–1457, 1464–1465 och 1467–1470, Sveriges riksföreståndare 1438–1440 och kung av Norge 1449–1450. Wikipedia.org; Wikimedia Foundation, Inc. https://sv.wikipedia.org/wiki/Karl_Knutsson_(Bonde)
- Bidragsytere til Wikimedia-prosjektene. (2005). konge av Sverige og Norge. Wikipedia.org; Wikimedia Foundation, Inc. https://no.wikipedia.org/wiki/Karl_I
- Flantzer, Susan. (2025). Eric of Pomerania – Eric III, King of Norway, Eric VII, King of Denmark, Eric XIII, King of Sweden (Flantzer, Ed.) [Review of Eric of Pomerania – Eric III, King of Norway, Eric VII, King of Denmark, Eric XIII, King of Sweden]. Unofficial Royalty. https://www.unofficialroyalty.com/eric-of-pomerania-eric-iii-king-of-norway-eric-vii-king-of-denmark-eric-xiii-king-of-sweden/
- King Charles VIII of Sweden. (2023). Geni_family_tree. https://www.geni.com/people/King-Charles-VIII-of-Sweden/6000000000345666785
- Wikipedia Contributors. (2024). Catherine Karlsdotter. Wikipedia; Wikimedia Foundation.
- Wikipedia Contributors. (2024). Karl Knutsson. Wikipedia; Wikimedia Foundation.