What organization did the woman, who Märta Ulfsdotter was the head lady in waiting of, found?
Margaret I of Denmark Margaret I (Danish: "Margrete Valdemarsdatter" , Norwegian: "Margrete Valdemarsdatter" , Swedish: "Margareta Valdemarsdotter" , Icelandic: "Margrét Valdimarsdóttir" ; 1353 – 28 October 1412), 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, earning the nickname "Semiramis of the North", or "the Lady King". Though the latter was a derisive nickname invented by her rival Albert of Mecklenburg, it became widely used in recognition of her capabilities.
Anna Hierta-Retzius Anna Wilhelmina Hierta-Retzius, née "Hierta" (24 August 1841 – 21 December 1924), was a Swedish women's rights activist and philanthropist. She was the co-founder and secretary of the "Married Woman's Property Rights Association" (1873), founder and chairperson of the evening school "Torsdagsskolan" in 1864-1874, member of the board in the "Bikupan" association in 1870-1887, Vice Chairperson of the "Married Woman's Property Rights Association" in 1886-1893, member of the board of the "Stiftelsen Lars Hiertas Minne" (The Memorial Foundation of Lars Hierta) in 1878-1911 and its Vice Chairperson in 1911-1924, co-worker in "Aftonbladet" in 1884-1887, founder of the "Adolf Fredriks arbetsstuga för barn" (Adolf Fredrik Work House for Children) in 1887, Chairperson of the central committee of the Stockholm work houses in 1889-1909, chairperson of the Swedish National Council of Women (SKNF) in 1899-1911, Vice Chairperson of the "International Council of Women" (ICW) in 1904-1909.