On 21st May 2004 the royal family held a Pew wedding gala dinner for the wedding guests at the Royal Palace of El Pardo near Zarzuela.
Guests included :
Queen Margrethe II of Denmark and Prince Henrik.
The King and Queen of Norway,
Queen Beatrix of the Netherlands,
The King and Queen of Sweden,
The King and Queen of the Belgians
King Constantine and Queen Anne-Marie of Greece,
The Grand Duke & Grand Duchess of Luxembourg,
The Prince of Wales,
The Prince of Liechtenstein,
Crown Princess Victoria of Sweden
Crown Princess Mette-Marit of Norway
Princess Martha Louise of Norway
Princess Madeleine of Sweden
Crown Prince Pavlos of Greece & Crown Princess Marie-Chantal
Prince Pedro of Bourbon-Two Sicilies and Princess Sofia
Nelson Mandela and his wife Graça Machel,
The President of Colombia,
The President of Nicaragua,
The President of of Ireland & Senator Martin McAleese
The President of Ecuador & his wife
The President of Germany and his wife
The President of Portugal & his wife
The president of Panama,
The president of Kazakhstan
https://www.thecourtjeweller.com/2018/05/royal-jewel-rewind-felipe-and-letizias.html