It happened at the Grand Palais

See the media:Seriously wounded troops arrive during World War I.

Wartime

Article - 18 January 2012
The Grand Palais conveys the visions, the values and hopes of the twentieth century, but also carries memories of its worst moments: caught up in the torment of two World Wars, the building provided accommodation for the wounded troops of the Great War as a makeshift military hospital, but was also used for Nazi propaganda during World War II.
See the media:The Petit Palais was built by Charles Girault.

Portrait of the architect Charles Girault (1851-1933) by his grandson

Article - 18 January 2012
A French architect, born at Cosne-sur-Loire in 1851, Charles Girault studied at the School of Fine Arts (l'École des Beaux-arts) in Paris and was awarded the Premier prix de Rome (a grant to study at the Villa Medici) in 1880. He was chief architect of the Grand Palais and supervised the construction work executed by Deglane, Thomas and Louvet. He also designed the Petit Palais before being elected to the Institut de France in 1902. One of his grandsons Henri Girault, now in his eighties, was only too willing to share his memories of the architect.