Their Majesties the King and Queen of Spain arrive with His Highness the Aga Khan at the inauguration of "The Islamic Worlds in the Aga Khan Museum Collection" exhibition at CaixaForum Madrid. - Photo: AKDN/Hinrick Schmoock

Signing of cooperation agreement between AECID (The Spanish Agency for International Cooperation for Development) and the Aga Khan Development Network by Luis Monreal, General Manager of the Aga Khan Trust for Culture, on behalf of AKDN, and Antonio Nicolau, Director General, on behalf of AECID, in the presence of His Majesty, Her Majesty and His Highness. - Photo: AKDN/Hinrick Schmoock

His Highness the Aga Khan speaking with Their Majesties the King and Queen of Spain at the inauguration of "The Islamic Worlds in the Aga Khan Museum Collection" exhibition in Madrid. - Photo: AKDN/Hinrick Schmoock

His Highness the Aga Khan and His Majesty the King of Spain viewing the exhibition of pieces from the Aga Khan Museum Collection. - Photo: AKDN/Hinrick Schmoock

A Mongol robe from the 13th or 14th century is one of 190 items on display in the Madrid exhibition, which runs through 6 September 2009 at la CaixaForum Madrid. The exhibition will then move to Barcelona, where it will run from October through January at la CaixaForum Barcelona. - Photo: AKDN