He entered the novitiate of the Society of Jesus 16 October 1723, and showed marked talent, studying mathematics and philosophy at Bologna, under Father Luigi Marchenti, a former pupil of Pierre Varignon at Paris.

He studied theology at Parma and then became professor of mathematics and physics at the university, holding this position for twelve years.

[2] For the construction of the observatory Belgrado collaborated with the famous astronomer Giuseppe Bolsi-Marchesi, who had worked for forty years in Bologna together with Eustachio Manfredi.

Belgrado published scientific essays and dissertations on various topics, such as elasticity, electricity and fluid dynamics, both in Latin and in Italian.

He held correspondences with several important personalities of scientific community, including Lalande, Poleni, La Condamine, Mairan, Boscovich and Toaldo.