Queen Letizia And King Felipe married in 2004 and for the occasion she wore an embroidered gold wedding dress.
Said to be one of the most remembered weddings of all time, the bride's dress was designed by Spanish designer Manuel Pertegaz.
It had a stand-up collar, long sleeves, a V-neck and a round train of more than four meters.
It was finished with gold embroidery with the fleur de lys and ears of corn, details of the coat of arms of the Prince of Asturias.
The Queen's wedding dress was thought to be worth as much as £6 million, one of the most expensive royal dresses of all time.
She accessorized the look with a diamond tiara, gifted by her mother-in-law, Queen Sofia.
Known as the Prussian Tiara, Queen Sofia also wore the headpiece on her wedding day to King Juan Carlos in 1962.
Letizia also wore a pair of diamond earrings, also from Sofia and Juan, and a pair of shoes made by Spanish shoe designer Pura Lopez.
The couple married in Madrid and the ceremony welcomed more than 1,000 guests, including her bridesmaids Victoria Codorniu and Claudia González, who wore much more traditional dresses by Spanish designer Lorenzo Caprile.
Their dresses had lace-up corset bodices, square necklines and long skirts.
Another royal with an expensive dress was Kate Middleton, with whom she tied the knot Prince William in 2011.
For her wedding day, Kate stunned in a beautiful lace dress that has been replicated by brands ever since.
It was created by Sarah Burton at Alexander McQueen, a designer brand that the Duchess is a big fan of.
It is said that the royal family worked closely with the British brand to create her perfect dress.
On the wedding day, the palace revealed in a statement that Kate “wanted her dress to combine tradition and modernity with the artistic vision that characterizes the work of Alexander McQueen.”