Lili Ilse Elvenes, better known as Lili Elbe (28 December 1882 – 12 September 1931), was a Danish transgender woman and one of the first identifiable recipients of sex reassignment surgery. Elbe was born Einar Magnus Andreas Wegener and was a successful artist under that name. She also presented as Lili (sometimes spelled Lily) and was publicly introduced as Einar's sister. After transitioning, however, she made a legal name change to Lili Ilse Elvenes and stopped painting.