His nephew was Romoaldo Braschi-Onesti, the penultimate cardinal-nephew.

Braschi was baptized in Cesena two days later on 27 December and was given the baptismal name of Angelo Onofrio Melchiorre Natale Giovanni Antonio. After completing his studies in the Jesuit college of Cesena and receiving his doctorate of both canon and civil law in 1734, Braschi continued his studies at the