Sant'Angelo was constructed in the mid-16th century by the Spanish general and Governor Milan Ferrante Gonzaga, over an edifice already existing in 1418, in replacement of the eponymous one, which had been destroyed to build the new walls. The design was by Domenico Giunti. The small bell tower was added in 1607, while the façade was finished only in 1630, in late-Mannerist or early-Baroque style. The church is one of the few in the city which was not restored in 'neo-medieval' style during the 19th century.
It has a single nave with side chapels and barrel vault, a transept and a deep presbytery. Artworks include works by Gaudenzio Ferrari, Antonio Campi, Morazzone, Simone Peterzano, Ottavio Semino, Camillo Procaccini and Giulio Cesare Procaccini. The triumphal arch has a frescoes with a solemn Incoronation of Mary by Stefano Maria Legnani.
In the transept is the tomb of Blessed Beatrice Casati, the wife and widow of Francino Rusca, the Earl of Locarno. She raised four children -- three sons and one daughter, the latter of whom placed this monument to their mother -- and was a devout member of the Franciscan tertiaries. She died in 1490.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.