Plan of Acre during Crusader rule, from a 14th century manuscript

A contemporary map of the Crusader city of Acre, drawn just after the city's sack in 1291. It was the work of Pietro Vesconte (fl. 1310-30) for Marino Sanudo's 'Liber Secretorum Fidelibus de Crucis' c.1320, a manuscript presented to Pope Clement V to encourage a new crusade. This engraving was the first time that the manuscript map was published, retaining the original's lack of a conventional single reading view. Thus the towers of the city's defences are drawn at odd angles.