Ulla Poulsen Skou, formerly Baroness Ulla Rosenørn-Lehn, was a Danish ballerina and actress. She was a soloist at the Royal Danish Ballet and is best known for being the subject of a series of portraits by Gerda Wegener.

Gerda Marie Fredrikke Wegener was a Danish illustrator and painter. Wegener is known for her fashion illustrations and later her paintings that pushed the boundaries of her time concerning gender and love. These works were classified as lesbian erotica at times and many were inspired by her partner, transgender painter Lili Elbe. Wegener employed these works in the styles of Art Nouveau and later Art Deco.