1735-1802 French French painter, pastellist and engraver. He lived in Paris from 1760 and from 1762 kept a list of his works. Among the portraits he completed in his early years were those in pastel of the well-known connoisseurs Pierre-Jean Mariette, the Comte de Caylus and Ange-Laurent de la Live de July (all untraced), which apparently were copies after Maurice-Quentin de La Tour. Ducreux has traditionally been seen as de La Tour favourite pupil, while Jean-Baptiste Greuze is supposed to have initiated him into oil painting. From his age, it can be assumed that by the time Ducreux reached Paris he had already acquired a grounding in his art.  Related Paintings of Joseph Ducreux :. | Yawning | Self Portrait_10 | Self-Portrait as a Mocker | Portrait de lartiste sous les traits dun moqueur | Marie Antoninette |
Related Artists:
Pietro Cignaroli
Italian , Verona 1665-1720
Vincenzo Chialli
was born at Citte di Castello in 1787. After having learned the rudiments of art in that town, he visited Rome at the age of seventeen years, and became a disciple of Camuccini, whom he afterwards imitated. After leaving Rome he painted religious subjects at Borgo San Sepolcro, Urbino, Pesaro, and Venice, from whence he retraced his steps to Rome; but as the climate did not suit him, he left that city in 1822 and returned to Citta di Castello. He became Director of the School of Painting at Cortona in 1835, and died in 1840.
William Morris Davis
February 12, 1850 - February 5, 1934,Davis, who was born in Philadelphia, Pennsylvania, was educated at Harvard. He returned to teach there in 1877 after a period as a meteorologist in Argentina and as an assistant with the North Pacific Survey. He became professor of physical geography in 1890 and of geology in 1898. Davis is acknowledged as the founder of geomorphology, the study of landforms. In his The Rivers and Valleys of Pennsylvania (1889) he first introduced what later became known as the Davisian systems of landscape analysis. His aim was to provide an explanatory description of how landforms change in an ideal situation and his most important contribution to this was his introduction of the cycle of erosion into geographical thought. He proposed a complete cycle of youth, maturity, and old age to describe the evolution of a landscape. In youth rivers occupy steep V-shaped valleys while in old age the valleys are broad. The end product would be a flat featureless plain he called a epeneplaine. This was an ideal cycle but in practice the cycle would invariably be interrupted by Earth movements. It was, nevertheless, strongly attacked by German geographers who objected to it on the grounds that it neglected such vital factors as weathering and climate in transforming the landscape. They also believed him to be undermining their argument that landforms could only be discovered by local fieldwork and the production of regional monographs. Davis also produced an influential work,