P. Marco Francesco Mambretti

Status: Acquitted

Diocese: Vicariate Apostolic of Pucallpa, Peru

From Italy. Ordained in 2013. Accused of raping a 13-year-old boy, who had a mental age of 10, in 2017 at Santo Domingo Savio parish in Yarinacocha. Mambretti was the vice-rector of the nearby San Pedro Seminary. According to the accuser, “The rapes occurred on several occasions, both in the office of the priest’s seminary and in his bedroom.” In July 2023 Mambretti was sentenced to 25 years in prison and required to pay 20,000 soles to the victim. In March 2025, the Superior Court of Justice of Ucayali, through its Permanent Criminal Court, issued a unanimous decision to exonerate Mambretti of the charges, sparking controversy and debate. Three other adolescent boys were also accused of sexually abusing the boy. In February 2026 Mambretti was in active ministry in the Diocese of Milan. 

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