In the rare case of there not being a nun with the qualifications, the requirements may be lowered to 30 years of age and five of those in an "upright manner", as determined by the superior.
[1] A woman who is of illegitimate birth, is not a virgin, has undergone non-salutory public penance, is a widow, or is blind or deaf, is typically disqualified for the position, saving by permission of the Holy See.
She was granted the ability to appoint her own vicar-general, select and approve the confessors, along with the practice of receiving the public homage of her clergy.
Instruments of church authority, from papal bulls down to local sanctions, were increasingly used to restrict their freedom to dispense blessings, administer sacraments, including the veiling of nuns, and publicly read the gospels or preach.
As Thomas Oestereich, contributor to the Catholic Encyclopedia (1913), makes clear, abbesses' past spiritual authority was increasingly seen as the "usurpation" of corresponding priestly power, and a solely male privilege.
He gives an example of the attitude toward such practice, from the 9th century, which persists in church administrative control into the modern era:[1] Thus, in the Capitularies of Charlemagne, mention is made of certain Abbesses, who contrary to the established discipline of the Church of God, presume to bless the people, impose their hands on them, make the sign of the cross on the foreheads of men, and confer the veil on virgins, employing during that ceremony the blessing reserved exclusively to the priest, all of which practice the bishops are urged to forbid absolutely in their respective dioceses.Similarly, in 1210, Innocent III (died 1216) expressed his view of the Cistercian Abbesses of Burgos and Palencia in Spain, who preached and heard confessions of their own religious, characterizing these acts as "unheard of, most indecorous, and highly preposterous.
In 1115, Robert, the founder of Fontevraud Abbey near Chinon and Saumur, France, committed the government of the whole order, men as well as women, to a female superior.
[1] These are collegiate foundations, which provide a home and an income for unmarried ladies, generally of noble birth, called canonesses (German: Kanonissinen), or more usually, Stiftsdamen or Kapitularinnen.
[2] Until the dissolution of Holy Roman Empire and mediatisation of smaller imperial fiefs by Napoleon, the evangelical Abbess of Quedlinburg was also per officio the head of that reichsunmittelbar state.