Lieserl Einstein was the first child of the celebrated German-born theoretical physicist, Albert Einstein, and his first wife, Serbian mathematician Mileva Marić. Not much is known about Lieserl as the only references to her are found in a few letters that her parents wrote to each other between 1901 and 1903. She is thought to have died from scarlet fever as a toddler in September 1903, but some theories suggest that she may have been adopted and raised by Marić’s close friend Helene Savić. However, this theory was discredited by Savić's grandson and renowned Serbian psychiatrist-psychoanalyst Dr. Milan Popović, who did extensive research on the relationship between Einstein and Marić.
