 Alessandro Maggiolini, Bishop of the Diocese of Como, opened the diocesan phase of Mainetti's beatification process at the Collegiate Church of Saint Lawrence in Chiavenna on 23 October 2005.On 20 March 2008, he announced that the request for the initiation of her beatification process had been approved.The Congregation for the Causes of Saints declared her a martyr, eliminating the need for recognition of a miracle.