After his first cousin, King Michael I of Romania, was forced to abdicate the throne in 1947, Dominic and his family were exiled by the Communist regime and sought refuge in Switzerland and Argentina before ultimately settling in the United States.

In 1975, the Comunión Carloctavista y Círculo Carlos VIII affirmed his legitimacy as Domingo I. Dominic returned to Austria in 1961 and resided there until 1976, when he moved to the Dominican Republic, Antigua, Italy and finally settled in New York.

They had two sons and divorced in 1999: He married secondly Emmanuella Mlynarski (born 14 January 1948), an Israeli-born former El Al flight attendant and former wife of Gad Yaacobi,[6][7] on 14 August 1999.

In 1962, he established his own design and marketing consultancy firm in Austria, which covered a variety of companies and products throughout Europe and the United States.

He was also an arts instructor in the Piesting grade school in Austria (1974–75), and a professor of industrial engineering and management at CEAT-INTEC in the Dominican Republic.