(December 6, 1750 - February 16, 1819) was a French painter. Valenciennes worked in Rome from 1778 to 1782, where he made a number of landscape studies directly from nature, sometimes painting the same set of trees or house at different times of day.He theorized on this idea in Advice to a Student on Painting, Particularly on Landscape (1800), developing a concept of a "landscape portrait" in which the artist paints a landscape directly while looking upon it, taking care to capture its particular details.Although he spoke of this as a type of painting mainly of interest to "amateurs", as distinguished from the higher art of the academies, he found it of great interest, and of his own works the surviving landscape portraits have been the most noted by later commentators. He in particular urged artists to capture the distinctive details of a scene's architecture, dress, agriculture, and so on, in order to give the landscape a sense of belonging to a specific place; in this he probably influenced other French artists active in Italy who took an anthropological approach to painting rural areas and customs, such as Hubert Robert, Pierre-Athanase Chauvin and Achille-Etna Michallon.  Related Paintings of Pierre-Henri de Valenciennes :. | View of the Palace of Nemi. | Cicero Discovering the Tomb of Archimedes | Storm by a Lake | A Capriccio of Rome with the Finish of a Marathon | View of Rome in the Morning |
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Pieter de Grebber
1600-1653 Dutch Pieter de Grebber Gallery Grebber was the son of Frans Pietersz de Grebber (1573?C1643), a painter and embroiderer in Haarlem, and would have been taught painting by his father and by Hendrick Goltzius. He was descended from a Catholic and artistic family (2 of his brothers, and his sister Maria, the mother-in-law of Gabriel Metsu, were known as painters). He was friendly with the priest and musicologist Jan Albertszoon Ban, and had a poem set to music by the Haarlem composer Cornelis Padbru??. In 1618, father and son went to Antwerp and negotiated with Peter Paul Rubens over the sale of his painting "Daniel in the lions pit". It was then handed - via the English ambassador in the Republic, Sir Dudley Carleton - to king Charles I. Pieter got important commissions not only in Haarlem, but also from the stadholder Frederik Hendrik. As such, he worked with on the decoration of the Huis Honselaarsdijk in Naaldwijk and at the Paleis Noordeinde in Huis ten Bosch in the Hague. He painted altar pieces for churches in Flanders and hidden Catholic churches in the Republic. He may also have worked for Danish clients.
John Constable
1776-1837 British John Constable Locations 1837). English painter and draughtsman. His range and aspirations were less extensive than those of his contemporary J. M. W. Turner, but these two artists have traditionally been linked as the giants of early 19th-century British landscape painting and isolated from the many other artists practising landscape at a time when it was unprecedentedly popular. Constable has often been defined as the great naturalist and deliberately presented himself thus in his correspondence, although his stylistic variety indicates an instability in his perception of what constituted nature. He has also been characterized as having painted only the places he knew intimately, which other artists tended to pass by. While the exclusivity of Constable approach is indisputable, his concern with local scenery was not unique, being shared by the contemporary Norwich artists. By beginning to sketch in oil from nature seriously in 1808, he also conformed with the practice of artists such as Thomas Christopher Hofland (1777-1843), William Alfred Delamotte, Turner and, particularly, the pupils of John Linnell. Turner shared his commitment to establishing landscape as the equal of history painting, despite widespread disbelief in this notion. Nevertheless, although Constable was less singular than he might have liked people to believe, his single-mindedness in portraying so limited a range of sites was unique, and the brilliance of his oil sketching unprecedented, while none of his contemporaries was producing pictures resembling The Haywain (1821; London, N.G.) or the Leaping Horse (1825; London, RA). This very singularity was characteristic of British artists at a time when members of most occupations were stressing their individuality in the context of a rapidly developing capitalist economy
Alexander von Humboldt
Berlin 1769-1859 Berlin,was a German naturalist and explorer, and the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767-1835). Humboldt's quantitative work on botanical geography was foundational to the field of biogeography. Between 1799 and 1804, Humboldt travelled to Latin America, exploring and describing it from a scientific point of view for the first time. His description of the journey was written up and published in an enormous set of volumes over 21 years. He was one of the first to propose that the lands bordering the Atlantic were once joined (South America and Africa in particular). Later, his five-volume work Kosmos (1845) attempted to unify the various branches of scientific knowledge.