–The sole asserted witness to the asserted resurrection of Jesus.
Mary is Jewish, like the rest of the Disciples of Jesus, but the sole female.
She is later to be severely vilified and trashed by Pope (Saint) Gregory the Great—one of the four Latin Fathers of the Church—in the latter half of the 500s CE.
The vilification is basically terminated presumably once–and–for–all, by liturgical changes made in 1969 (1400 years after Gregory) in the Catholic liturgy.
This matter is important because Mary Magdalene is the sole witness to the assorted Resurrection of Jesus – to one of the two key pillar miracles of Catholicism, the other being the asserted Immaculate Conception. It is far from clear what would motivate Gregory to undermine “the witness.”