(1684–1764). Leading Roman painter, though partnerships with the less distinguished artists Filippo Germisoni and Filippo Evangelisti affected his reputation. He was taught by the Bolognese painter Bonaventura Lamberti (1652–1721), and the naturalistic element in his style distanced him from the Maratti-dominated Roman art establishment. Nevertheless, in 1718 he painted a Jonah in S. John Lateran, for which he was made a cavaliere. Two years later he led the successful campaign against a papal decree that had sought to protect the Accademia di S. Luca (see under Rome) by various restrictive practices, including the prohibition of non-academicians from teaching art. He embarked on a busy period of church commissions in Rome and elsewhere, constantly experimenting with devices to emphasize dramatic immediacy, and reaching a peak of narrative verismo in the frescoes at Città di Castello Cathedral (1747–9).
From The Oxford Companion to Western Art in Oxford Reference.