Santa Maria Maggiore is a church in Lomello, province of Pavia, Lombardy, Italy, an example of First Romanesque art.
The oldest document mentioning the basilica is a privilege by pope Paschal II, dated 22 August 1107.
Archaeological studies showed that at least two churches existed in the site before the current one, the earliest one being perhaps contemporary to the annexed baptistery of San Giovanni ad Fontes (c. 5th-7th centuries).
The longitudinal arches (those separating the nave from the aisles) are supported by semicolumns which form the pillars.
Adejacent to the basilica is the nearly coeval Baptistery of San Giovanni ad Fontes.