1. This French noblewoman, the widow of Henry d'Orleans, duc de Longueville, was approached as a possible wife for Henry VIII before she married King James V of Scotland in 1538. Mary, Queen of Scots Anne of Cleves Mary of Guise Anne of Denmark

2. This former Austrian archduchess was ill-prepared for marriage and the expectations of being a queen. Although she managed to eventually have a fairly happy marriage, she and her husband lost their heads over their excesses and ineptitude. Elisabeth of Austria Marie Antoinette Maria Leszczynska Marie-Therese-Charlotte of France

3. Known to history as the "She-Wolf of France", this princess married England's Edward II when she was only 12. Eleanor of Aquitaine Philippa of Hainault Marguerite of France Isabella of France

4. Called the "Pearl of France", this princess married England's Edward I in 1299. He was 60, she was just 16. Isabella of France Marguerite of France Eleanor of Castile Blanche of France

5. Formerly the Queen of France, this formidable, strong-willed, and highly educated woman married the future Henry II of England, eleven years her junior, in 1152. Isabella of France Eleanor of Aquitaine Eleanor of Provence Mathilda of Flanders

6. The daughter of Henry IV of France, she married England's Charles I in 1625, leading to years of religious division in England. Henrietta Maria of France Marie de Medici Henrietta Anne of England Catharine of Braganza

7. A granddaughter of Queen Victoria, she married King Alfonso XIII of Spain in 1906, despite the fact that his mother thought her a very bad choice. Charlotte of Prussia Victoria "Ena" of Battenberg Patricia of Connaught Alix of Hesse

8. The product of her mother's adulterous affair, this lonely and sickly German princess married Alexander, the Tsarevich of Russia, in 1841. Marie of Hesse-Darmstadt Louise of Baden Sophie of Anhalt-Zerbst Charlotte of Prussia

9. The daughter of a German count, this 15-year-old became the second wife of England's Henry I (aged 53) in 1121. Charlotte of Mecklenberg Wilhelmine of Baden Sophia of Anhalt Adeliza of Brabant

10. A granddaughter of Queen Victoria, she wanted badly to marry her cousin, the future George V. Her mother forbade the match and arranged a marriage to Crown Prince Ferdinand of Romania instead. Charlotte of Prussia Patricia of Connaught Irene of Hesse Marie of Edinburgh

11. A German princess and granddaughter of Queen Victoria, she married Crown Prince Constantine of Greece in 1889. Louise of Hesse Charlotte of Prussia Patricia of Connaught Sophia of Prussia

12. A princess of France, she married Leopold, the first King of the Belgians, in 1832. Marie Amalia of the Two Sicilies Louise Marie Adelaide de Bourbon Louise-Marie of France Louise-Henriette de Bourbon

13. A daughter of Maximilian I Joseph of Bavaria, this princess held four queenly titles in her lifetime. Caroline Augusta of Bavaria Maria Josepha of Bavaria Elizabeth Christine of Brunswick Augusta Wilhelmine of Bavaria

14. The daughter of William I of Wurttemberg, she married her cousin Prince William of Orange in 1839. Sophie of Wurttemberg Olga of Wurttemberg Catharina of Wurttemberg Marie of Wurttemberg

15. This flirtatious and adulterous lady-in-waiting married Henry VIII in 1540, but was executed for treason less than two years later. Jane Seymour Anne Boleyn Catherine Howard Anne of Cleves