“The biggest challenge to the royal family and to the crown is undoubtedly the government,” says Ramón Pérez-Maura, a Spanish ...

the Bourbons of France, and the British royal family, often married cousins. The Spanish Habsburgs, who ruled for nearly 200 years, frequently married among close relatives. Their dynasty ended in ...

Teresa, 28, is the granddaughter of Princess Teresa of Bourbon-Two Sicilies - a cadet branch of the Spanish royal family, although the throne is now defunct. The couple, who have a 20 year age gap ...