(gäspär' pūsăN') , 1615–75, French landscape painter, b. Rome. The son of a Frenchman named Dughet, he adopted the name of his brother-in-law, Nicolas Poussin, in whose studio he worked and whose influence is visible in his interpretations of the Italian countryside. Gaspard is particularly noted for his storm effects. He is best represented in the Colonna Palace and the Doria Palace, both in Rome.