The reconstruction, based on an incorrect assumption, i.e. the dating of the Martinengo mausoleum, and conducted purely deductively without the aid of documentary sources, generated considerable confusion in the attribution and cultural framework of many works of art.

Only from 1977, with the archival researches of Camillo Boselli,[4] was Maffeo Olivieri's oeuvre restored to its correct artistic sphere, following the organic reconsideration of Gasparo Cairano and his work.

In the province of Cremona, in the Church of Santa Maria del Boschetto (Soresina), Olivieri has been identified as the creator of the wooden statuary of the Saints Siro, Giobbe, Rocco and Peter the Martyr, as well as the sculpture of Sant'Antonio Abate located in the sacristy.

His greatest work in this field are the two candelabra, dated and signed, placed on the sides of the altar of the Chapel of the Madonna of the Mascoli in St Mark's Basilica in Venice, donated by the Brescian Cardinal Altobello de Averoldi.

[8] The bronze and stone apparatus of the Mausoleum of Martinengo in the Museum of Santa Giulia, Brescia, the ark of Sant'Appollonio in the Duomo Nuovo of Brescia, the altar of San Girolamo at the Church of Saint Francis of Assisi were all restored to Gasparo Cairano's oeuvre in the 2000s, while the bronze statues of the Martinengo mausoleum have been shown to be the works of Bernardino delle Croci.