Jean Fusoris (1365–1436)
Born 1365 CE, died 1436 CE.
Jean Fusoris (c. 1355/1365 – 1436) was a medieval French clergyman and astronomer who designed astrolabes and other astronomical instruments made of brass. He also published a treatise on the construction of the astrolabe. His clients included the royalty of France and the Bishop of Norwich. Fusoris was born in Giraumont where his father dealt in pewter goods. Fusoris studied first at Mézières-sur-Meuse and then arts, medicine and theology at the University of Paris, receiving a bachelor's degree in 1379, and a master's in 1391. He then became a canon at the Rheims Cathedral in 1404, moving to Paris after he was ordained in 1411, serving as canon at Notre-Dame, provost at Seine et Marne (1414) and curate at Nancy. He oversaw an atelier to manufacture astronomical instruments and collaborated at various times with Jean de Berle and Jean de Chalon. He sold an astrolabe to Richard Courtenay, the Bishop of Norwich in 1414 for which he was not fully paid. He then joined the embassy of Guillaume de Boisratier, Archbishop of Bourges, to England in 1415 and met the Bishop of Norwich.
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