Stradivarius Palatinos
The Stradivarius Palatinos or Palatines, are a set of five string instruments made by Antonio Stradivari around 1700. They are kept in Madrid's Royal Palace. The term "Palatino" can in this case be translated as "court" instruments, as it refers to their belonging to the Spanish royal collection.
Four of the five are decorated instruments known as the Royal Quartet (also referred to in Spanish as Palatino or Coral): they comprise 2 violins, a viola and a cello. There is also another (non-decorated) cello.