Carlo Michelstaedter was born in Gorizia, the capital of the Austro-Hungarian County of Gorizia and Gradisca, the youngest of four children of Albert and Emma Michelstaedter (née Luzzatto). His older siblings were Gino (1877–1909), Elda (1879–1944) and Paula (1885–1972). His full name was Carlo Raimondo (Gedaliah Ram). His father was the director of the local branch of the Trieste-based Assicurazioni Generali insurance company. The Michelstaedters were an Italian-speaking upper middle class Jewish family of Ashkenazi origin.
His sister Paula remembered him as a child fearful of the dark and heights, stubborn and not at all prepared to apologize for any misbehavior. In school, he was judged "not very suitable (minder entsprechend)" for having intentionally and frequently disturbed the lessons during the year.
His father was also the chairman of the Gabinetto di Lettura Goriziano, a local cultural association for the fostering of literary culture, and he pushed his son towards literary study. His mother Emma Luzzatto came from an old and renowned Jewish family of Italian irredentist leanings. His aunt was Carolina Luzzatto, who was also a supporter of Italian irredentism. Carlo was considered an introverted boy, but by the end of high school (completed in Gorizia), he developed into a brilliant, athletic, intelligent youth. He enrolled in the department of mathematics at the University of Vienna, but soon moved to Florence, a city he savored for its arts and language. There he formed friendships with other students, and in the end, enrolled in the department of letters of the local Istituto di Studi Superiori (1905). He majored in Greek and Latin, and selected for his laurea thesis a philosophical study of persuasion and rhetoric in ancient philosophy. In 1909 he returned to Gorizia and set himself to work on the thesis.

Return to Carlo Michelstaedter Autograph Profile