According to the lawsuit filed Monday in Philadelphia's Court of Common Pleas, the plaintiff was assaulted by a seminarian while a student at one school and by a priest while a student at another.
The lawsuit says the seminarian was later ordained as a priest and the second priest was convicted of sexually assaulting another student.
The suit follows criminal charges filed last week against three priests and a high-ranking archdiocese official accused of failing to protect children from predator priests.
The suit names Cardinal Justin Rigali and his predecessor, Cardinal Anthony Bevilacqua. A message left with the archdiocese was not immediately returned Monday.