Hector Camacho remembers Robert Prevost, set to be formally inaugurated as Pope Leo XIV on Sunday, as a young jeans-wearing missionary from Chicago with broken Spanish, landing in Peru at a time when the country was being torn apart by internal conflict.

Heather and Dominic Jaroch tell PEOPLE about the time Pope Leo XIV, then simply known as “Father Bob," flew back to Chicago to preside over their wedding as a favor to her late father Ed

Father Robert Prevost first arrived in Peru in 1985 during a time of crisis, the aftermath of devastating El Niño rains that had left thousands of people homeless.