From Dom Guéranger's The Liturgical Year.
Our Lady shares her honours to-day with two brothers, whose martyrdom, under Valerian, raised them from servile condition to the highest rank of heaven’s nobility. Their bodies were first laid in the cemetery of St. Hermes: but Protus had already been honoured within the walls of the eternal city for more than a thousand years, when, in 1845, the discovery of Hyacinth’s bones in his primitive tomb, opened a new era in the history of the catacombs and of Christian archæology.
Prayer
Beatorum martyrum tuorum Proti et Hyacinthi nos, Domine, foveat pretiosa Confessio, et pia jugiter intercessio tueatur. Per Dominum.
May the precious confession of thy blessed martyrs Protus and Hyacinth animate us, O Lord, and may their pious intercession ever defend us. Through our Lord.