Spain's new King Felipe VI, his wife Queen Letizia, Princess Sofia, Princess Leonor (3rdL), King Juan Carlos and Queen Sofia appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's new King Felipe VI, his wife Queen Letizia, Princess Sofia, Princess Leonor (3rdL), King Juan Carlos and Queen Sofia appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's Queen Sofia (L) blows a kiss as Infanta Elena applauds during the swearing-in ceremony for new King Felipe VI (not seen) at the Congress of Deputies in Madrid. PIcture: Esteban Cobo/Pool
Spain's Queen Sofia (L) blows a kiss as Infanta Elena applauds during the swearing-in ceremony for new King Felipe VI (not seen) at the Congress of Deputies in Madrid. PIcture: Esteban Cobo/Pool
Spain's new King Felipe VI, his wife Queen Letizia, Princess Sofia, Princess Leonor (2ndL), King Juan Carlos and Queen Sofia appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's new King Felipe VI, his wife Queen Letizia, Princess Sofia, Princess Leonor (2ndL), King Juan Carlos and Queen Sofia appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's new King Felipe VI (2ndL) is sworn in by Parliament Chairman Jesus Posada (L) next to Spain's Queen Letizia (C), their daughters Princess Leonor and Princess Sofia during the swearing-in ceremony at the Congress of Deputies in Madrid. Picture: J J Guillen/Pool
Spain's new King Felipe VI (2ndL) is sworn in by Parliament Chairman Jesus Posada (L) next to Spain's Queen Letizia (C), their daughters Princess Leonor and Princess Sofia during the swearing-in ceremony at the Congress of Deputies in Madrid. Picture: J J Guillen/Pool
Spain's new King Felipe VI and his wife Queen Letizia embrace as they appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's new King Felipe VI and his wife Queen Letizia embrace as they appear on the balcony of the Royal Palace in Madrid. Picture: Andrea Comas
Spain's Queen Letizia (L) touches the cheek of her daughter Princess Leonor during the swearing-in ceremony for Spain's new King Felipe VI (not seen) at the Congress of Deputies in Madrid. Picture: Paco Campos/Pool
Spain's Queen Letizia (L) touches the cheek of her daughter Princess Leonor during the swearing-in ceremony for Spain's new King Felipe VI (not seen) at the Congress of Deputies in Madrid. Picture: Paco Campos/Pool
Spain's new King Felipe VI and his wife Queen Letizia parade through the streets of Madrid from the Congress of Deputies to the Royal Palace. Picture: Gonzalo Fuentes
Spain's new King Felipe VI and his wife Queen Letizia parade through the streets of Madrid from the Congress of Deputies to the Royal Palace. Picture: Gonzalo Fuentes
The crown is seen inside the hemicycle during the swearing-in ceremony for Spain's new King Felipe VI at the Congress of Deputies in Madrid. PIcture: Sergio Barrenechea/Pool
The crown is seen inside the hemicycle during the swearing-in ceremony for Spain's new King Felipe VI at the Congress of Deputies in Madrid. PIcture: Sergio Barrenechea/Pool
Spain's new King Felipe VI and his wife Queen Letizia parade through the streets of Madrid from the Congress of Deputies to the Royal Palace. PIcture: Gonzalo Fuentes
Spain's new King Felipe VI and his wife Queen Letizia parade through the streets of Madrid from the Congress of Deputies to the Royal Palace. PIcture: Gonzalo Fuentes
Spain's newly crowned King Felipe VI listens to the national anthem next to his wife Spain's Queen Letizia, their daughters Spain's Princess Leonor and Spain's Infant Sofia, left, and Spain's Prime Minister Mariano Rajoy, second right, outside the Spanish parliament, in Madrid. PIcture: Sergio Barrenechea, Pool
Spain's newly crowned King Felipe VI listens to the national anthem next to his wife Spain's Queen Letizia, their daughters Spain's Princess Leonor and Spain's Infant Sofia, left, and Spain's Prime Minister Mariano Rajoy, second right, outside the Spanish parliament, in Madrid. PIcture: Sergio Barrenechea, Pool
Spains newly crowned King Felipe VI waves as he arrives at the Parliament in Madrid. Picture: Andres Kudacki
Spains newly crowned King Felipe VI waves as he arrives at the Parliament in Madrid. Picture: Andres Kudacki
Spanish Police officers are seen on the roof of the Royal Palace as they secure the area during new King Felipe VI appearance on the balcony in Madrid. Picture: Eloy Alonso
Spanish Police officers are seen on the roof of the Royal Palace as they secure the area during new King Felipe VI appearance on the balcony in Madrid. Picture: Eloy Alonso
Spains newly crowned King Felipe VI waves next to Queen Letizia from an open-top Rolls Royce in the streets in Madrid, Spain. Picture: Paul White
Spains newly crowned King Felipe VI waves next to Queen Letizia from an open-top Rolls Royce in the streets in Madrid, Spain. Picture: Paul White

Spain's new king, Felipe VI, was sworn in on Thursday in a relatively modest ceremony which monarchists hope will usher in a new era of popularity for the troubled royal household.

He called immediately for Spain to stay united but respect the cultural differences among its regions, ending a speech by saying “thank you” in four languages: Castilian Spanish, Basque, Catalan and Galician.