current whereabouts of which is unknown). Between 1804 and 1806 he painted a series of portraits which were striking for their extreme precision, particularly in the richness of their fabrics and tiny details. These included the Portrait of Philipbert Riviére (1805), Portrait of Sabine Rivière (1805–06), Portrait of Madame Aymon (also known as La Belle Zélie; 1806), and Portrait of Caroline Rivière (1805–06). The female faces were not at all detailed but were softened, and were notable for their large oval eyes and delicate flesh colours and their rather dreamlike expressions. His portraits typically had simple backgrounds of solid dark or light colour, or of sky. These were the beginning of a series that would make him among the most celebrated portrait artists of the 19th century. As Ingres waited to depart to Rome, his friend Lorenzo Bartolini introduced him to Italian Renaissance paintings, particularly the works of Bronzino and Pontormo, which Napoleon had brought back from his campaign in Italy and placed in the Louvre. Ingres assimilated their clarity and monumentality into his own portrait style. In the Louvre were also masterpieces of Flemish art, including the Ghent Altarpiece by Jan van Eyck, which the French army had seized during its conquest of Flanders. The precision of Renaissance Flemish art became part of Ingres's style. Ingres's stylistic eclecticism represented a new tendency in art. The Louvre, newly filled with booty seized by Napoleon in his campaigns in Italy and the Low Countries, provided French artists of the early 19th century with an unprecedented opportunity to study, compare, and copy masterworks from antiquity and from the entire history of European painting. As art historian Marjorie Cohn has written: "At the time, art history as a scholarly enquiry was brand-new. Artists and critics outdid each other in their attempts to identify, interpret, and exploit what they were just beginning to perceive as historical stylistic developments." From the beginning of his career, Ingres freely borrowed from earlier art, adopting the historical style appropriate to his subject, and was consequently accused by critics of plundering the past. In 1803 he received a prestigious commission, being one of five artists selected (along with Jean-Baptiste Greuze, Robert Lefèvre, Charles Meynier, and Marie-Guillemine Benoist) to paint full-length portraits of Napoleon Bonaparte as First Consul. These were to be distributed to the prefectural towns of Liège, Antwerp, Dunkerque, Brussels, and Ghent, all of which were newly ceded