Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Monarchy of Spain, constitutionally referred to as The Crown and commonly referred to as the Spanish monarchy or Hispanic Monarchy, is a constitutional institution and a historic office of Spain. The monarchy comprises a reigning King or Queen of Spain, their family, and the royal household organization which supports and facilitates the monarch in the exercise of his royal duties and prerogatives. The monarchy is currently represented by King Juan Carlos I, his wife Queen Sofia, and their children and grandchildren. Juan Carlos I, current King of Spain, is descended directly from Robert of Hesbaye (770-807) through the male line, thus making the Spanish Royal Line the second longest lived in the world, after the Japanese. Learn more about the Monarchy of Spain and its history and lineage in the following pages.