Tennyson's poem, "The Holy Grail" makes an explicit connection between the Last Supper, Joseph of Arimathea and the grail. Percival speaks, explaining to a monk that the grail is no phantom cup:

"... The cup, the cup itself, from which our Lord
Drank at the last sad supper with his own.
This, from the blessed land of Aromat--
After the day of darkness, when the dead
Went wandering o'er Moriah--the good saint
Arimathaean Joseph, journeying brought
To Glastonbury, where the winter thorn
Blossoms at Christmas, mindful of our Lord.
And there awhile it bode; and if a man
Could touch or see it, he was healed at once,
By faith, of all his ills. But then the times
Grew to such evil that the holy cup
Was caught away to Heaven, and disappeared." (44-58)
Selection from Alfred Lord Tennyson's "The Holy Grail".