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The Opinion of Architect Giovanni Paolo Maggio To Prevent The Flooding of Rome -- Dedicated to Camillo Borghese, Pope Paul V
Fine example of Giovanni Paolo Maggio's extremely rare map addressing the flood control problems faced by Rome and environs. In 1606, he first wrote his "Brief speech [...] to prevent the flooding of the Tiber to the city of Rome". In his "Proposal [...] to remedy the flooding of the Tiber "(Vatican Apostolic Library, Chigi H.II. 43, ff. 168e ff.) he proposed to creation of a canal, which would drain part of the waters of the Tiber River, with an estimated cost of 39,000 scuti.
The plan is accompanied by text section with architect Maggio's observations on the opportunity to divert the Tiber at several points in order to avoid flooding, which has been engraved by master engraver Philippe Thomassin.
Oriented with west at the top of the, the map tracks the course of the Tiber River from its confluence with the Aniene and Prati di Quinto to Monte Testaccio and the Porta Portuense and Porta Osiense, illustrating the ancient monuments, walls, city gates, major hills, roads, buildings and other major sites. The course of the proposed Canal (Novo alveo che disegna farsi), connects the Tiber from a point south of today's Ponte della Musica to a point on the river just south of Castel San Angelo.
Rarity
We locate a single example in the Biblotecka Nazionale Centrale Di Roma.
This may be the example sold a Christies in 1998.
![[Pozzuoli / Napoli] Explicatio aliquot locorum quae Puteolis spectantur](https://storage.googleapis.com/raremaps/img/small/58733.jpg)
![[Upper Lombardy and Surrounding Countries, where are the States of Savoy, Piedmont, Milan, Genoa, Montferrat, etc. . . 1648] Haute Lombardie et Pays circomvoisins, ou sont les Estats de Savoye Piemont, Milan.Genes, Monferrat, &c](https://storage.googleapis.com/raremaps/img/small/96129.jpg)
![[Pavia] Pavie](https://storage.googleapis.com/raremaps/img/small/77325.jpg)
![[ France and Low Countries ] Totius galliae descriptio, cum parte Angliae, Germaniae, Flandriae, Brabantiae, Italiae, Romam usque](https://storage.googleapis.com/raremaps/img/small/74214.jpg)