Pietro Luigi Speranza (1801–1879) was the Bishop of Bergamo from 1854 to his death 25 years later.^[1]

In 1868 he recognized the Congregation of the Holy Family of Bergamo.

• Cheney, David M. "Diocese of Bergamo". Catholic-Hierarchy.org. Retrieved June 15, 2018. (for Chronology of Bishops) ^{[self-published]}
• Chow, Gabriel. "Diocese of Bergamo". GCatholic.org. Retrieved June 15, 2018. (for Chronology of Bishops) ^{[self-published]}