# Map of Tuscany and the Chiana Valley [View the canonical artwork record]() ## Artwork - Artist: [LEONARDO da Vinci]() - Date: 1451-1500 - Technique: Black chalk, pen, ink and colour on paper, 338 x 488 mm ## Commentary Map of Tuscany and the Chiana Valley c.1502 Black chalk, pen, ink and colour on paper, 338 x 488 mm Royal Library, Windsor This general map of Tuscany and the Chiana Valley probably dates from the time when Leonardo was in the service of Cesare Borgia. It is presumably a strategic map produced for Borgia, for the place and river names have been recorded carefully. It may also have been produced in connection with Leonardo's plans to build a canal from Florence to the sea. Damming Lake Chiana was meant to guarantee a sufficient water supply for the canal, even during the dry season. ## Related artworks - [Adoration of the Magi]() - [Allegory with wolf and eagle]() - [Anatomical studies \(larynx and leg\)]() - [Anatomical studies of a male shoulder]() - [Anatomical studies of the shoulder]() - [Anatomical studies]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() ## Attribution [Web Gallery of Art]()