ALL SAINTS CELEBRATED IN AUGUST Saints celebrated on the 31st of August SAINTS ROBUSTIAN AND MARK, MARTYRS Today, we also commemorate Saints Robustian and Mark. The Roman Martyrology states: "Also, the holy martyrs Robustian and Mark." PRAYER: Grant, we beseech you, almighty God, that the venerable feast of Saints Robustian and Mark may increase our devotion and promote our salvation. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spirit, God, for ever and ever. Amen.