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.
Princess Cecilia of Sweden Cecilia of Sweden, (Swedish: "Cecilia Gustavsdotter Vasa") (16 November 1540 in Stockholm – 27 January 1627 in Brussels), was Princess of Sweden as the daughter of King Gustav I and his second queen, Margaret Leijonhufvud, and Margravine of Baden-Rodemachern through marriage with Christopher II, Margrave of Baden-Rodemachern. She is the most famous of the daughters of Gustav Vasa, known for a courtship scandal in connection with a sister's wedding and for a lengthy stay in England under Elizabeth I where her first child was born.