Who is the patron saint of school girls?

As per the Patron Saint Index there is no patron saint of school girls. However, there are a number of patrons of school children:

Albert the Great

Ambrose of Milan

Benedict

Cassian of Imola

Catherine of Alexandria

Gabriel of the Sorrowful Mother

Gemma Galgani

Gregory the Great

Holy Innocents

Isidore of Seville

Jerome

John Bosco

Joseph Calasanz

Joseph of Cupertino

Lawrence of Rome

Nicholas of Myra

Osanna Andreasi

Philomena

Symphorian of Autun

Tatiana of Rome

Thomas Aquinas

Ursula