Jacob of Ancona (or Jacob d'Ancona) is the name that has been given to the supposed author of a book of travels, purportedly made by a scholarly Jewish merchant who wrote in vernacular Italian, an account of a trading venture he made, in which he reached China in 1271, four years before Marco Polo. The narrative contains political debates about the future of the city in which he engaged with the aid of a translator of mixed Italian and Chinese ancestry.