This book reveals the collection presented at Ajuda Royal Palace in Lisbon (Royal Treasure Museum), that has been recently renovated, and where is displayed this unique collection with particular significance for a country with a nine-century history. Over the time, from the 17th century until the 20th century, the Braganza Royal Family has collected precious jewels and works of art intensively, often through relations with other important European families, but also through royal gifts. Finally displayed in a monumental permanent exhibition, each object in this collection witnesses the history of a leading country, as well as the story of the people who have worn or conserved these highlights of decorative art.