He exhibited at the Paris salon from 1868, when, passing up the competition for the Prix de Rome, he decided to spend time in Florence instead.
[1] Among his works were several statues created for Baron Rothschild for his Château de Ferrières and the tomb at Montmartre Cemetery in Paris for Alexandre Dumas, fils.
In 1891 René de Saint-Marceaux joined the newly formed Société des artistes français.
In 1907 he was commissioned to execute the plaquette for the Société française des Amis de la Médaille.
[3] His bronze and granite monument for the headquarters of the Universal Postal Union in Bern, Switzerland (illustration) erected in 1909, represents the five continents as floating figures joined in transmitting messages around the globe.