The Feast of Corpus Christi, the Body and Blood of Christ, occurrs 60 days after Easter and thus falls in early summer, in June or July.

The Feast was formally established in 1215, when the Church asserted that what occurred during the mass was the miracle of transubstantiation; that is, that the wafer of consecrated bread did not simply represent the body of Christ but actually became it.

As celebrated in the fourteenth century, the Feast included a procession during which the Holy Host was generally carried through or around the town.  A host is placed in a Monstrance and is carried by a priest in the procession under a canopy.