|Mary, Queen of Scots|
Mourning clothes are traditionally black. However, the colour of mourning in medieval Europe was white rather than black. The custom of the Queens of France to wear white veils for mourning was called deuil blanc. Mary, Queen of Scots, was in deuil blanc following the deaths of her father-in-law, mother, and first husband Francis II of France.
The white mourning tradition survived in Spain until the end of the fifteenth century. In 1993, this royal custom was revived by the Spanish-born Queen Fabiola for the funeral of her husband, King Baudouin I of Belgium. Additionally, in 2004, the four daughters of Queen Juliana of the Netherlands all wore white to their mother's funeral.