He became a successful sculptor after training under Antoine Laurent Dantan and Pierre-Jules Cavelier.
[2] His artworks on Hercules is evidently inspired by the Greek hero, but in particular, the stories that depict the character as a saviour.
[5] Another one of his famous works is the statue of law displayed on the façade Palace of Justice, Rome.
[6] In addition to his career as an artist, Allar joined the Legion of Honour as an officer in 1896 and the French Institute in 1905.
[2] He won various prizes but most notably the Prix de Rome in 1869 for his sculpture, and later became a member of the Académie des Beaux-Arts on 20 May 1905.