Princess Eugenia (Ena) of Battenberg and Princess Beatrice (Bee) of Saxe Coburg, granddaughters of Queen Victoria of England, married into the Spanish royal family.
In 1906, Ena became the consort of King Alfonso XIII, who had been sovereign since his birth in 1886. Three years later, Bee married his cousin, Infante Don Alfonso. Ena's marriage proved unhappy with the ill-health of her hemophiliac sons and her husband's infidelities.
The...