Al‐Māridīnī, Jamāl al‐Dīn, and Badr al‐Dīn
Jamāl al‐Dīn al‐Māridīnī was a competent astronomer who lived in Damascus or Cairo ca. 1400. He authored numerous short treatises, mainly dealing with instruments. One of the most remarkable of these instruments is a universal quadrant, the only known example of which is from Spain ca. 1580, made by a craftsman in the Louvain tradition (now in the Adler Planetarium, Chicago). His name indicates that he or his family came from Mardin, now in southern Turkey, but biographical information is lacking; indeed it is not even clear where he worked. He is often confused with his grandson, Sibṭ al‐Māridīnī.
Badr al‐Dīn al‐Māridīnī, known as Sibṭ al‐Māridīnī, lived in Cairo, ca. 1460. He was a grandson (Arabic sibṭ) of Jamāl al‐Māridīnī and was one of the leading astronomers in Cairo. He compiled a large number of treatises, including many short works on the standard instruments of his time, the trigonometric and astrolabic quadrant and sundials. These treatises became extremely popular and...
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