Biagasco, Brienzone, Ca' D'Andrino, Ca' di Bruno, Casa Franchini, Casa Lucchi, Fracchio, Groppo Superiore, Monastero, Mongarizzo, Montemerlano, Monticelli, San Lorenzo (City Hall)
Documents prove that Pozzolo del Groppo and Pozzolo have been under the dominion of the city ofTortona since the twelfth century,[3] so much so that they rushed to the aid of the latter when it was besieged by Frederick Barbarossa in 1155.
In 1449 the area came under the control of theSforza family ofMilan, who in 1480 sent an expedition to punish the people of Pozzolo, accused of being a den of bandits.[4]
In 1928 the Groppo and Pozzolo were aggregated, forming the current Pozzol Groppo and being included in the province of Alessandria.[5]
DuringWorld War II was the scene of battles betweenpartisans andfascists. On January 31, 1945, in the hamlet of Biagasco, a military unit of fascists surprised and killed in the night some members of a partisan division. Ashrine remembers the massacre.
The Malaspina castle, a powerful and noble family, feudal lord and lady of the lands of Pozzol Groppo for centuries, was built on the site of a Roman watch tower. The imposing building preserves inside a beautiful courtyard with a medieval well and sumptuous rooms with fireplaces, wooden ceilings and fresco decoration, keeping alive the prestige of an illustrious past.
Theparish church, dedicated to San Lorenzo, is first documented in the 16th century.
In the hamlet of Biagasco is the oldest church in the village, mentioned in documents of the twelfth century
Near the church the shrine erected in memory of the 1945 massacre.
^Cammarata, Italo (2011).Quando la storia passava di qui (in Italian). Guardamagna. p. 143.ISBN978-88-95193-44-1.
^Royal Decree 10 August 1928, n. 1968, in Gazzetta Ufficiale del Regno d'Italia, n. 228, 1º October 1928."Reunification of the municipalities of Groppo and Pozzol Groppo into a single municipality with the name " Pozzol Groppo " and municipal seat in San Lorenzo".