Radu graduated from the Costache Negruzzi High School in Iași in 1979, and from the University of Drama and Film in Bucharest in 1984, and had over twenty years of artistic activity in Romania as well as in other European countries, the Americas, Asia, and Africa. He was the artistic director of the first art therapy project for abandoned children in Romanian orphanages. The project, started in 1993, was developed in eight cities over six years. In 1994, while working as an art therapist in orphanages, he met Princess Margareta, when she was touring the programmes of her Princess Margareta Foundation. On 24 July 1996, Margareta married Duda in a civil wedding at Versoix. On 21 September 1996 they were married in Lausanne, and on 1 January 1999 he was granted the title "Radu, Prince of Hohenzollern-Veringen".