Ms. astrological treatises by Abū Maʻshar (also transliterated as Albumazar or Albumasar; b. Aug. 10, 787; d. 28 Ramaḍān 272/8-3-886); written and illuminated in Bruges, Belgium, in or before 1403.
There are five extant manuscripts of the text of Morgan 785, an extensively illustrated and abridged Latin translation of the Arabic "Introduction to Astrology" of Abu Ma'shar (787\–886) by Georgius Zothorus Zaparus Fendulus, whose name is given in the introduction (fol. 1r). The earliest copy of the Fendulus text is Paris, Bibliothèque nationale MS Lat. 7330, ca. 1240. The direct prototype for M. 785 is a Franco-Flemish manuscript, ca. 1350, British Museum Sloan MS 3983. Although Fendulus states that he translated Abu Ma'shar's text from the original Persian, Abu Ma'shar wrote in Arabic, suggesting that Fendulus was working from Herman the Dalmatian's earlier Latin translation, rather than from the original source. All five copies of Fendulus's text share the same format and structure, and date from ca. 1220-1240 through 1500. For each zodiac sign there is a page of text, an illustration of the sign, and three folios of three registers each, illustrating the decans for each sign. Following the zodiac signs are seven planets, shown in their houses and counter-houses, and in exaltation and dejection.