Vincent of Beauvais

Vincent of Beauvais ( or "Vincentius Burgundus"; c. 1264) was a Dominican friar at the Cistercian monastery of Royaumont Abbey, France. He is known mostly for his "Speculum Maius" ("Great mirror"), a major work of compilation that was widely read in the Middle Ages. Often retroactively described as an encyclopedia or as a "florilegium", his text exists as a core example of brief compendiums produced in medieval Europe.
Biography.
The exact dates of his birth and death are unknown, and not much detail has surfaced concerning his career. Conjectures place him first in the house of the Dominicans at Paris between 1215 and 1220, and later at the Dominican monastery founded by Louis IX of France at Beauvais in Picardy. It is more certain, however, that he held the post of "reader" at the monastery of Royaumont on the Oise, not far from Paris, also founded by Louis IX, between 1228 and 1235. Around the late 1230s, Vincent had begun working on the "Great Mirror" and in 1244 he had completed the first draft. The king read the books that Vincent compiled and supplied the funds for procuring copies of such authors as he required. Queen Margaret of Provence and her son-in-law, Theobald V of Champagne and Navarre, are also named among those who urged him to the composition of his "little works", especially "De morali principis institutione". In the late 1240s, Vincent was working on his "Opus" which included "On the Education of Noble Girls" ("De Eruditione Filiorum Nobilium"). In this work he styles himself as "Vincentius Belvacensis, de ordine praedicatorum, qualiscumque lector in monasterio de Regali Monte". Though Vincent may have been summoned to Royaumont before 1240, there is no evidence that he lived there before the return of Louis IX and his wife from the Holy Land. It is possible that he left Royaumont in 1260, which is also the approximate year that he wrote "Tractatus Consolatorius", which was occasioned by the death of the king's son Louis that year. Between the years 1260 and 1264 Vincent sent the first completed book of the "Opus" to Louis IX and Thibaut V. In 1264 he died.
"Great Mirror" ("Speculum Maius").
What is known of Vincent and his historical importance largely depends on his compendium "Speculum Maius" or the "Great Mirror". He worked on it for approximately 29 years (1235-1264) in the pursuit of presenting a compendium of all of the knowledge available at the time. He collected the materials for the work from Île-de-France libraries, and there is evidence to suggest even further than that. He found support for the creation of the "Great Mirror" from the Dominican order to which he belonged as well as King Louis IX of France. The metaphor of the title has been argued to "reflect" the microcosmic relations of Medieval knowledge. In this case, the book mirrors "both the contents and organization of the cosmos". Vincent himself stated that he chose "Speculum" for its name because his work contains "whatever is worthy of contemplation ("speculatio"), that is, admiration or imitation". It is by this name that the compendium is connected to the medieval genre of speculum literature.
Other works.
There are manuscript copies and modern editions of "De eruditione filiorum nobilium", "De morali principis institutione", "Liber consolatorius ad Ludovicum regem de morte filii". There are only manuscript copies of "Liber de sancta Trinitate", "Memoriale temporum", "Tractatus de poenitentia", and "Tractatus in salutatione beatae Virginis Mariae ab angelo facta".
Beyond the thirteen works that can be confidently accredited to Vincent, there is the possibility of a lost work named "Tractatus de vitio detractionis" ("Treastise on the Sin of Omission") and the apocryphal fourth part to the "Great Mirror", "Speculum morale".
Along with Conradus of Altzheim, Henricus Suso, Ludolphus of Saxony, the authorship of "Speculum Humanae Salvationis" has been sometimes attributed to Vincent.