Imre Henszlmann, the founder of Hungarian history of art and protection of historic monuments. This study shows the biography of Imre Henszlmann (1813–1888), one of the most important Hungarian art-historians in the 19th century. After visiting the grammarschool and studing medicine he started to work as an art-historian. He published a lot of books and articles and explored many medieval monuments in Hungary. He was influenced by the international art-historical literature of the first half of the 19th century, especially by German, English and French works. According to German romantic movement, the gothic art was very important for him. When restoring monuments he supported the stylistic method of restoration, which was usual at this time in whole Europe. He managed the foundation of the Hungarian commission for historical monuments. Furthermore he was the first professor of history of art at the University of Budapest.