[2][3] Wedell was originally from Denmark,[4] the daughter of Vilhelm Ferdinand, Baron Wedell-Wedellsborg [da] (of the Wedel noble family) and Louise Marie Sophie, Countess Schulin, and the granddaughter of Johan Sigismund Schulin (1808–1880) [da].
[1] At the time of the Congress, in 1897, she had just completed a doctorate at the University of Lausanne in Switzerland, with Adolf Hurwitz as an unofficial mentor.
[5] The subject of her dissertation was the application of elliptic functions to the construction of the Malfatti circles.
The other three women at the congress were Iginia Massarini, Vera von Schiff, and Charlotte Scott.
[3] Wedell married engineer Eugène Tomasini in Copenhagen in 1898; they divorced in 1909.