Antonius de Butrio (1338 - 1408 AD) wrote a Commentarium in
Decretales Gregorii IX.
Translation from the latin by John
Wijngaards
The power of the keys was not given to a woman, but to Peter.
For, though the most blessed Virgin Mary is more excellent than all Apostles,
yet the keys of the kingdom were not entrusted to her, but to them . . . .
Indeed, it is fitting that woman does not possess the power of the keys because
she is not made in the image of God, but only man who is the glory and image of
God. That is why a woman must be subject to man and be as his slave, and
not the other way about.
Commentaria II, fol.
89r.
Source: Ida Raming, The Exclusion of Women
from the Priesthood, Scarecrow Press, Metuchen 1976, pp. 91-92.