Cena is the name of a lady who writes (A.D. 733) to St. Boniface, assuring him of her prayers, and begging his. She rarely sees him, but would gladly serve him or any of his party, should they come into her province. To her place of residence the letter gives no clew (St. Boniface Epistle 34, ed. Würdtwein in Migne, Patrol. 89, 733).