Jacques de Guyse  Jacques de Guyse (Latin: Iacobus de Guisia) (1334−1399) was a Franciscan historian of the County of Hainaut in the late 14th century. Guyse was born in 1334 in Mons and died in 1399 in Valenciennes, both cities in the County of Hainaut. After studying in Paris, where he obtained a doctorate in theology, he returned to Hainaut. His main work is the wide ranging "Annales Historiae Illustrium Principum Hannoniae" in which he covered the history of the County of Hainaut from its mythological beginnings to the year 1254. Initially this work did not get much attention, but half a century later it was translated from Latin to French by Jean Wauquelin and was richly illuminated.