I will try my best, TB!!
Princess Helene was the daughter of Louis Philippe, Comte de Paris, who was the grandson of Louis Philippe d'Orleans, King of the French who was deposed in 1848. Helene's mother was Marie-Isabelle de Montpensier, the Comte's first cousin.
Helene had several brothers and sisters:
1. Marie-Amelie (1865-1951). She married Carlos I of Portugal.
2. Philippe (1869-1926). He succeeded his father as pretender to the throne, married Archduchess Maria Dorothea of Austria but died childless.
3. Isabelle (1878-1961). She married Jean d'Orleans, Duc de Guise, her first cousin.
4. Louise (1882-1958). She married Prince Carlos of the Two Sicilies.
5. Ferdinand (1884-1923). He married Maria Isabel de Valdeterrazo, but died childless.
After her separation from Eddy, she married Emmanuel Philibert, Duke of Aosta, cousin of Victor Emmanuel II of Italy in 1895 and had these children:
1. Amedeus II, Duke of Aosta (1898-1942). He married Anne, the daughter of Helene's sister Isabelle.
2. Aimone (1900-1948). He married Princess Irene of Greece.
Helene died in 1951 aged 79.