Paul Delaroche
Gastaldi was born and died in Turin, Piedmont. He studied at the Accademia Albertina under Michele Cusa, Giovan Battista Biscarra, and Carlo Arienti. He then traveled to Florence and Rome during 1850–1851 and 1853–1859; and spent some time in Paris studying in the studio of the history painter Thomas Couture. He met also Paul Delaroche.