Who is the only female saint called “the Great”?

[Michie]

That is a link to the Roman Martyrology

You misunderstand. Does the Orthodox Church call her (the great)?

 

[prodromos]

Liturgical Calendar — General Roman Calendar (2022)

She is listed on this one, but not as "the Great"

 

[prodromos]

You misunderstand. Does the Orthodox Church call her (the great)?

My understanding is that she has always been referred to as "St Catherine the Great Martyr" long before the schism.

 

[Michie]

Although Gertrude was never formally canonized, Rome approved a liturgical office of prayer and readings in her honor. To separate her from Abbess Gertrude of Hackeborn, Pope Benedict XIV gave her the title, "the Great," making her the only woman saint to be called, "the Great."

St. Gertrude the Great is the Patroness of the West Indies and she is often invoked for souls in purgatory. Her feast day is celebrated on November 16.

Continued below.

St. Gertrude the Great - Saints & Angels - Catholic Online

St. Gertrude the Great, or St. Gertrude of Helfta, was born on January 6, 1256 in Germany. She eventually chose to follow the Lord by pursuing a vocation as a Benedictine Nun. Her deep relationship with the Lord in prayer led to her being hailed as a mystic. She was also regarded as a great ...

www.catholic.org

 

[WarriorAngel]

Saint Catherine of Alexandria is a canonized saint in the Catholic Church who, per Christian tradition, was martyred around 305 in Alexandria, Egypt. Of course, the Church of the first Millennium was undivided. She is also recognized as the Great Martyr and Saint by the Orthodox Church.

St. Catherine of Alexandria - Saints & Angels - Catholic Online

Saint Catherine of Alexandria is a canonized saint in the Catholic Church who, per Christian tradition, was martyred around 305 in Alexandria, Egypt. Of course, the Church of the first Millennium was undivided. She is also recognized as the Great Martyr and Saint by the Orthodox Church. There...

www.catholic.org