Dora Richter
Dora Rudolfine Richter (16 April 1892 – 26 April 1966) was a German trans woman and the first known person to undergo complete male-to-female gender-affirming surgery. She was one of a number of transgender people in the care of sex-research pioneer Magnus Hirschfeld at Berlin's Institute for Sexual Research during the 1920s and early 1930s.