Isidore Laurent Deroy (1797 - 1886) was a French artist, lithographer, and draughtsman. Born in Paris, Deroy studied under Cassas and FĂ©lix. His lithographs were displayed at the Paris Salon from 1827 until 1866. He produced lithographs of a diverse array of subjects and published an innumerable amount of views. He taught his two children Emilie Deroy and Auguste-Victor Deroy his trade.