Norwegian Princess, Swedish Princess and Duchess. Norwegian name: Ingebjørg Håkonsdatter. Positioned herself in the regency governments in Norway (1319–1327) and Sweden (1319–1326). In 1318-1319 she was Sweden's de facto Vicereine and ruler and her position subsequently equalled that of an undeclared queen mother for over 40 years. From 1319 to 1326, she was Sweden's first de jure female regent. She was the only legitimate child of King Hacon V and Queen Euphemia of Norway. As a child, she was first betrothed to Prince Magnus of Sweden, heir to the throne there, an engagement which was broken for changing political reasons, and in 1305 she was betrothed to Magnus's uncle Prince Eric of Sweden, Duke of Sudermania. They were married in 1312 in Oslo. For the wedding, her mother Queen Euphemia published the poetic Euphemia Songs. Eric was murdered by his brother King Birger in 1318 and Ingiburga immediately asserted her position as regent for her 3-year-old son. When he became King Magnus VII of Norway, and then also King Magnus IV of Sweden, she remained in that poweful position until 1326 when the Swedish lords removed her from the government. She married again, this time her courtsman and lover the Danish Lord Canute Porse and they had three children. Porse died in 1330 and her sons inherited his title of Duke of Hallandia which she in turn inherited from them as Duchess in her own right when they both died 20 years later. The location of her grave is not known. This is to document the contemporary bust of her in Linköping Cathedral.