Queen Amelia of Portugal is one of my favorites (my usual refrain). She actually became a favorite when I saw her riding that bull in Last Courts of Europe. She was the sister of Helene, Duchess of Aosta (of Eddy & Helene fame).
Marie Denmark was cousin to Amelia--their father's were brothers.
Generation I
Louis Philippe, Duc d'Orléans assumed French throne as LOUIS PHILIPPE after his distant cousin, King Charles X, was ousted in 1830 (he sharing the fate 18 years later). Married: Maria Amelia of Bourbon-Two Sicilies (They took exile in England and were friendly with QV)
Generation II
1) Ferdinand Philippe Louis Charles Henri Rosolin, Duc d'Orléans m. Duchess Hélène Dss of Mecklenburg-Schwerin
Generation III
1) Louis Philippe Albert , Comte de Paris m. Infanta Maria Isabella of Spain
Generation IV
1) Marie Amélie Louise Hélène m. Carlos I of Portugal
2) Louis Philippe Robert Duc d'Orléans m. Archduchess Maria Dorothea of Austria
3i Hélène Louise Henriette m. Emanuele Savoy, Duke of Aosta m.2 (1936) Oddone Campini
4) Charles (d. 6 mos)
5) Isabelle m.Jean d'Orléans, Duc de Guise (cousin)
6) Jacques Marie Antoine Clément (d. less than 1 yr
7) Louise m.Carlo of Bourbon-Two Sicilies, Infant of Spain
Ferdinand François Philippe Marie Laurent Duc de Montpensier m. Doña Maria Isabel González de Olañeta y Ibarreta Marquesa de Valdeterrazo
III generation, pt. 2
2) Robert , Duc de Chartres m.Françoise d'Orléans (cousin)
IV generation, pt 2
1) Marie Amélie Françoise Hélène m. Valdemar of Denmark
2) Robert Louis Philippe Ferdinand François Marie
3) Henri Philippe Marie (d. age 34 in Saigon)
4) Marguerite Louise Marie Françoise m Marie Armand Patrice de Macmahon (was there Scottish blood there?) Duc de Magenta
5) Jean Pierre Clément Marie, Duc de Guise m. his cousin Isabelle Pss d'Orléans (became head of Orleans family when his cousin the Duc d'Orleans died in 1926)