As you are facing the building, the plaque is located on the left-hand side of the front entrance to Le Grand Hôtel & Spa at Place de Tilleul on Rue Charles de Gaulle.

Plaque
Through the initiative of the current owners of Le Grand Hôtel & Spa, this bronze plaque commemorates, in both English and French, the accomplishments of American airman Norman Prince, a graduate of Harvard Law and co-founder of La Lafayette Escadrille, an elite World War I fighter pilot unit. It features the American and French flags and the insignia of La Lafayette Escadrille, the bust of Sioux chief Sitting Bull. Prince, along with other American aviators, petitioned French authorities to create a unit comprised of foreign troops in 1916 well before the official U.S. entry into the war in 1917. The plaque marks the exact sight where Prince was hospitalized and ultimately died after a plane crash in 1916. 

“A la mémoire de Norman PRINCE,

un Américain pilote et cofondateur de la prestigieuse Escadrille de Lafayette,

décédé le 15 oct. 1916 dans cet établissement,

alors utilisé comme hôpital militaire.

Il est mort des suites des blessures mortelles subies lors d’un accident d’avion.

Alors âgé de 29 ans, il était titulaire de quatre victoires aériennes.”

“In memory of Norman Prince,

an American pilot and co-founder of the prestigious Lafayette Escadrille,

who died on Oct. 15, 1916, at this establishment,

then used as a military hospital.

He died of fatal injuries suffered in an airplane accident. 

Then 29 years old, he had achieved four aerial victories.”