by Susan Flantzer
© Unofficial Royalty 2025

Eric of Pomerania was King of the three Scandinavian kingdoms as King Eric III of Norway (1389 – 1442), King Eric VII of Denmark (1396 – 1439), and King Eric XIII of Sweden (1396 – 1434, 1436 – 1439). However, he was deposed in all three kingdoms. Eric was born in 1381 or 1382 as Bogislaw of Pomerania at Darłowo Castle in Rügenwalde, Duchy of Pomerania, now Darłowo, Poland. He was the elder of the two children and the only son of Wartislaw VII, Duke of Pomerania and Maria of Mecklenburg. Eric’s paternal grandparents were Bogislaw V, Duke of Pomerania and Adelheid of Brunswick-Grubenhagen. Heinrich III, Duke of Mecklenburg and Ingeborg of Denmark, the eldest daughter of King Valdemar IV of Denmark, were his maternal grandparents.

Eric had one sister:

• Catherine of Pomerania (circa 1390 – 1426), married Johan, Count Palatine of Neumarkt, had one son Christopher III, King of Denmark, Norway, and Sweden, Erik’s successor

Eric’s maternal grandmother Ingeborg of Denmark was the sister of Margrethe I, Queen of Denmark (1387 – 1412), Queen of Norway (1388 – 1412), and Queen of Sweden (1389 – 1412). Ingeborg was the only one of Margrethe’s five siblings to marry and have children. Margrethe I’s only child Olaf II, King of Denmark/Olaf IV, King of Norway (1370 – 1387), died in his teens and had no heirs. After her son’s death Margrethe was named Queen of Denmark and Queen of Norway. In 1389, Queen Margrethe I replaced the unpopular King Albert of Sweden when the Swedish noble rose against him.

In 1389, Margrethe I brought seven or eight-year-old Bogislaw to Denmark to be raised as a Dane. Bogislaw’s name was changed to the more Nordic-sounding Eric. When Eric came of age, he was declared co-ruler in Denmark, Norway, and Sweden, however, Margarethe I remained the effective ruler of all three kingdoms for the remainder of her life. Margrethe devised the Kalmar Union, a personal union from 1397 to 1523, in which a single monarch ruled the three kingdoms of Denmark, Sweden (then including much of present-day Finland), and Norway, together with Norway’s overseas colonies (then including Iceland, Greenland, the Faroe Islands, and the Northern Isles of Orkney and Shetland).

Early in his reign, King Henry IV of England tried to negotiate an alliance between England and the Kalmar Union. He suggested a marriage between two of his children, his eldest son and heir, the future King Henry V of England, and his daughter Philippa of England, with Margrethe I’s great-niece and great-nephew, Catherine of Pomerania and Eric of Pomerania. Terms for the marriages were not agreed upon at that time, however, in 1405, a marriage between Philippa and Eric of Pomerania was arranged. Eleven-year-old Philippa was married by proxy to 24-year-old Eric on November 26, 1405, at Westminster Abbey in London. Philippa was formally proclaimed Queen of Denmark, Sweden, and Norway in London, England on December 8, 1405, in the presence of the Danish, Swedish, and Norwegian ambassadors.

In August 1406, Philippa left England to travel to Sweden and married Eric of Pomerania in person on October 26, 1406, at Lund Cathedral in Lund, Sweden. Documentation from the wedding indicates that Philippa wore a tunic with a cloak in white silk bordered with gray squirrel and ermine, making her the first documented princess to wear a white wedding dress. On November 1, 1406, Philippa was crowned Queen of Denmark, Sweden, and Norway.

On October 28, 1412, 59-year-old Queen Margrethe I died aboard her ship docked in the harbor at Flensburg, then in the Duchy of Schleswig, now in the German state of Schleswig-Holstein. Several possible causes of Margrethe’s death have been discussed over the years including the bubonic plague and poisoning by her co-ruler and great-nephew Eric, who became sole King of Denmark, Norway, and Sweden when Margrethe died.

In 1417, Eric made Copenhagen a royal possession assuring its status as the capital of Denmark. He also took away Copenhagen Castle from the Bishop of Roskilde, and the castle became his primary residence. During Eric’s reign, he had many conflicts with the Hanseatic League, a commercial and defensive network of merchant guilds and market towns in Central and Northern Europe,  the Teutonic Order, a Catholic religious institution founded as a military society, and the Schauenburg Counts of Holstein. The tax burden related to these conflicts caused discontent among Eric’s subjects, particularly in Sweden.

Eric went on a pilgrimage to Jerusalem from 1423 – 1425. While he was away, his wife Philippa was regent for Denmark, Sweden, and Norway. After Eric returned from his pilgrimage, Philippa continued her commitment to the kingdoms. She resolved disputes among her subjects, and organized and successfully defended Copenhagen against attacking forces from the Hanseatic League cities.

After twenty-three years of marriage, Philippa gave birth, for the first and last time, to a stillborn boy in 1429. Her health deteriorated after the stillbirth and during a visit to Vadstena Abbey in Stockholm, Sweden, Philippa died on January 5, 1430, at the age of 35. Her death was a great loss to Eric and the monarchy. She was buried in St. Anna’s Chapel, which she had built at the Vadstena Abbey church. In Philippa’s memory, Eric gave a generous sum of money to Vadstena Abbey. In return, he demanded that the abbey employ ten priests to pray and sing psalms continually for Philippa’s soul. After Philippa’s death, Eric had a relationship and eventually, a morganatic marriage, with Cecilia, Philippa’s former lady-in-waiting,

With no children to succeed him, Eric named his cousin Bogislaw IX, Duke of Pomerania as his heir presumptive of his three kingdoms. However, the Danish nobility refused to ratify his choice. In response, Eric left Copenhagen and lived at Visborg Castle in Gotland, Sweden’s largest island. 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 succeeded him in all three kingdoms.

For ten years, Eric lived in Gotland and supported himself by piracy. After Swedish attacks in 1449, he was forced to surrender Visborg Castle to Christian I, King of Denmark, Norway, and Sweden, and return to his birthplace Rügenwalde in the Duchy of Pomerania. From 1449 to 1459, Eric ruled Pomerania-Rügenwalde, a small partition of the Duchy of Pomerania-Stolp. Erik died at his birthplace, Darłowo Castle in Rügenwalde, Duchy of Pomerania, now Darłowo, Poland, on September 24, 1459, aged 77-78, and was buried in St. Mary Church in Darłowo.

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Works Cited

• Autoren der Wikimedia-Projekte. (2004). König der Kalmarer Union, Herzog von Pommern-Stolp. Wikipedia.org; Wikimedia Foundation, Inc. https://de.wikipedia.org/wiki/Erik_VII._(D%C3%A4nemark)
• Bidragsydere til Wikimedia-projekter. (2003). Konge af Norge, Danmark og Sverige (1382-1459). Wikipedia.org; Wikimedia Foundation, Inc. https://da.wikipedia.org/wiki/Erik_af_Pommern
• Flantzer, Susan. (2025). Margrethe I, Queen of Denmark, Queen of Norway, and Queen of Sweden. Unofficial Royalty. https://www.unofficialroyalty.com/margrethe-i-queen-of-denmark-norway-and-sweden-2/
• Flantzer, Susan. (2017). Philippa of England, Queen of Denmark, Sweden, and Norway. Unofficial Royalty. https://www.unofficialroyalty.com/philippa-of-england-queen-of-denmark-sweden-and-norway/
• Wikipedia Contributors. (2024). Eric of Pomerania. Wikipedia; Wikimedia Foundation. https://en.wikipedia.org/wiki/Eric_of_Pomerania
• Wikipedia Contributors. (2024). Wartislaw VII, Duke of Pomerania. Wikipedia; Wikimedia Foundation.