Nicholas Michael de Roumanie Medforth-Mills was born on 1 April 1985 at 21:29 Hôpital de la Tour et Pavillon Gourges, Meyrin, Geneva, Switzerland, the first of two children of Princess Helen of Romania and her first husband Leslie Robin Medforth-Mills. Nicholas has one younger sibling, his sister, Elisabeta-Karina de Roumanie.