The statue is made of wood gilded and date of the seventeenth century.
"Sub Tuum Praesidium, we escape, Holy Mother of God. Do not despise our
prayers when we are in the race, but of all the dangers deliver us always,
Virgin glorious Blessed Virgin. " The people of Monaco have a loyal devotion
to the Virgin Mary, often referred to as the words "Mother of mercy" and
"St. Mary the Glorious."

Google Translation from official Monaco Cathedral website