Giacomo Quarenghi (Italian pronunciation: [ˈdʒaːkomo kwaˈreŋɡi; -ˈrɛŋɡi]; Russian: Джа́комо Кваре́нги, romanized: Džákomo Kvaréngi, IPA: [ˈdʐakəmə kvɐˈrʲenɡʲɪ]; 20 or 21 September 1744 – 2 March [O.S. 18 February] 1817) was an Italian architect who was the foremost and most prolific practitioner of neoclassical architecture in Imperial Russia, particularly in Saint Petersburg. He brought into vogue an original monumental style, of Palladian inspiration, which was a reference for many architects who worked in Russia as well as the Grand Duchy of Finland.
He has been described as "the last of the great architects of Italy".[1]