Royal Profile: Princess Helene of Yugoslavia

Princess Helene Olga Lydia Tamara Maria of Yugoslavia was born 12 March 1963 as the only daughter of Prince Alexander of Yugoslaiva and his first wife, Princess Maria Pia of Savoy {Source}. She has four brothers, one of who is her twin and a younger brother who is her half-brother as well as several nieces and nephews:

1. Prince Dimitri of Yugoslavia (1958)
2. Prince Michael of Yugoslavia (1958)
3. Prince Sergius Wladimir Emanuel Marie of Yugoslavia (1963)
1. Sophia de Toledo (m. 1985-1986, div)
2. Christiane Galeotti
1. Umberto Emmanuel Dimitri of Yugoslavia (2018)
4. Prince Dushan Paul of Yugoslavia (1977, half brother)
1. Valerie De Muzio (m. 2018)

On her mother's side, she has the following stepsiblings and stepnieces and nephews from her stepfather, Prince Michel of Bourbon-Parma:

1. Princess Inès Marie Josephe Marguerite Yolande Tatiana of Bourbon-Parma (1952-1981)
1. Miss Marie Mélodie de Bourbon (1977, adopted 1982, by her grandfather Prince Michael of Bourbon-Parma)
2. Prince Erik Marie Joseph René Michael Pierre of Bourbon-Parma (1953)
1. Countess Lydia afHolstein-Ledreborg (1955, 1980-1999)
1. Princess Antonia Monique Charlotte Marie of Bourbon-Parma (1981)
2. Princess Marie Gabrielle Yolande Camilla Philippine of Bourbon-Parma (1982)
3. Princess Alexia Thérèse Sybille Eric Charles Marie of Bourbon-Parma (1985)
4. Prince Michel Knud John Marie Joseph of Bourbon-Parma (1989)
5. Prince Henri Luitpold Antoine Victor Marie Joseph of Bourbon-Parma (1991)
1. Archduchess Gabriella of Austria (engaged 2017)
1. Victoria Antonia Marie-Astrid Lydia de Bourbon-Parme (2017)
3. Princess Sybil Marie Josephine Anne Victorie of Bourbon-Parma (1954)
1. Craig Richards (m. 1997)
4. Princess Victoire Maria Pia Josephe Philippe Isaure of Bourbon-Parma (1957-2001)
1. Baron Ernst von Gecmen-Waldek (1943)
1. Baroness Tatiana von Gecmen-Waldek (1974)
1. Michael Berger-Sandhofer (m. 1995)
2. Baron Vincent Nicholas von Gecmen-Waldek (1981)
5. Prince Charles-Emmanuel Marie Joseph Jacques Hely of Bourbon-Parma (1961)
1. Constance de Ravinel (1971)
1. Prince Amaury Yves Michel Marie Joseph of Bourbon-Parma (1991)
2. Princess Charlotte Alexe Yolande Marie Joseph of Bourbon-Parma (1993)
3. Princess Elizabeth Flore Angélique Marie Joseph of Bourbon-Parma (1996)
4. Princess Zita Angélique Inès Marie Joseph of Bourbon-Parme (1999)
6. Ms. Amélie de Bourbon de Parme (1977)
1. Igor Bogdanoff (1949, m 2009)
1. Master Alexandre Bogdanoff (2011)

She married Thierry Gaubert on 12 January 1988 and together, they have the following children{Source}:

1. Milena Maria-Pia Angelique Armaule Gaubert (1988)
2. Nastasia Marie-José Tania Vanessa Isabelle Gaubert (1991)
3. Leopold Umberto Armand Michel Gaubert (1997)