Baldassare Longhena (1598 – 18 February 1682) was an Italian architect, who worked mainly in Venice, where he was one of the greatest exponents of Baroque architecture of the period.
His best-known work is the elegantly decorated Basilica di Santa Maria della Salute begun in 1631 to thank the Virgin for the city's deliverance from the plague.
The main entrance, modeled on the Roman triumphal arch, was later copied in successive churches and cathedrals, in Venice and elsewhere.
[1] As Branko Mitrović states in his book on renaissance architecture: "Scamozzi...adjusted the central intercolumnation of the main portico so that the edges of columns can be seen from the end of a circular hall.
Visually, this is a way to suggest from inside that there is another formal space beyond the entrance door... Baldassare Longhena used a similar system of non-orthogonal axes in Santa Maria della Salute in Venice.