Peschiera del Garda was once the site of an ancient lake-dwelling settlement. The fortress played a prominent part in most military campaigns conducted in northern Italy after 1400. In the middle of the 16th century the fortress and town passed into the hands of the Venetians, who ordered reconstruction of the fortress according to projects by Guidobaldo da Urbino and Sanmicheli. Napoleon added two new fortresses there. At the beginning of the 19th century the Austrians redesigned and expanded the fort. With Mantua, Verona, and Legnano, it became one of the strongholds of the Quadruple Alliance. After the end of the Third War of Independence (1866), Peschiera del Garda became part of the Kingdom of Italy. During the First Italian War of Independence, it was taken by the Piedmontese from the Austrians, after a gallant defence by General Rath lasting six weeks, on May 30, 1848.References:
The Amphitheatre of the Three Gauls was part of the federal sanctuary of the three Gauls dedicated to the cult of Rome and Augustus celebrated by the 60 Gallic tribes when they gathered at Lugdunum (Lyon). The amphitheatre was built at the foot of the La Croix-Rousse hill at what was then the confluence of the Rhône and Saône.
Excavations have revealed a basement of three elliptical walls linked by cross-walls and a channel surrounding the oval central arena. The arena was slightly sloped, with the building"s south part supported by a now-vanished vault. The arena"s dimensions are 67,6m by 42m. This phase of the amphitheatre housed games which accompanied the imperial cult, with its low capacity (1,800 seats) being enough for delegations from the 60 Gallic tribes.
The amphitheatre was expanded at the start of the 2nd century. Two galleries were added around the old amphitheatre, raising its width from 25 metres to 105 metres and its capacity to about 20,000 seats. In so doing it made it a building open to the whole population of Lugdunum and its environs.