With one child, Nicholas, born in Austin, Texas, Radu Florescu moved east and began his academic career as a Professor of history at Boston College. In the Boston area, he will have 3 more children: John (1954), Radu (1961), and Alexandra (1963). At Boston College, he joined forces with Raymond T. McNally, and the two began their research on Vlad the Impaler. Then with McNally and Matei Cazacu, of the Paris Institut des Hautes Etudes, Florescu will go on to write six books on Vlad the Impaler's life. Alongside his work on Vlad the Impaler, Florescu would write seven more books on East European History and on the history of Romania such as "The Struggle Against Russia in the Romanian principalities, 1821-1854".