Mantovani's beatification process commenced after – on 27 January 1987 – the Congregation for the Causes of Saints issued a nihil obstat (nothing against) to the cause in a move that accorded Mantovani the posthumous title of Servant of God. The conferral of the title acted as the process's first official stage. The diocesan process opened in 1987, and, after a brief period of collecting evidence on her saintliness, closed in 1988. The C.C.S. validated the process on 25 May 1990 in Rome.
