Our Lady of the Holy Rosary is also known as Our Lady of the Most Holy Rosary.
In 1571, Pope Pius V instituted “Our Lady of Victory” as an annual feast to commemorate the victory in the Battle of Lepanto. The victory was attributed to the Blessed Virgin Mary, as a rosary procession had been offered that day in St. Peter’s Square, Rome, for the success of this mission. In 1573, Pope Gregory changed the name of this feast day to the Feast of the Holy Rosary and then in 1716, Pope Clement XI extended the feast, inserted it into the Roman Catholic Calendar of Saints and assigned it to the first Sunday in October. Today, we celebrate the feast on October 7, the date established in 1913 by Pope Pius X.