National Heritage presents the exhibition " Cartas al Rey. La mediación humanitaria de Alfonso XIII en la Gran Guerra ", in the Temporary Exhibition Rooms of the Royal Palace of Madrid, on the occasion of the centenary of the First World War.

The exhibition reflects the key figure of King Alfonso XIII, who helped thousands of European citizens to locate their loved ones between 1915 and 1918. A benefactor action, practically unknown, but which had a great importance at a human and diplomatic level. the contest of the early twentieth century.