By the term ‘sepulehrum’ is designated that device or structure employed in churches—especially in the middle ages—to symbolize, or in more complete manner to represent, the tomb of Christ. This sepulchrum, so named in the liturgy, first appears in connection with the ancient office of the Depositio Crucis, or burial of the cross, which after mass on Good Friday typified the burial of Christ. Complementing and completing the Depositio was another office, privately celebrated by the priest and clergy before matins on Easter Sunday, typifying the resurrection, and called the Elevatio Crucis. When, after the tenth century, troping of the Introit for Easter morning—the famous Quem Quaeritis—developed into a little liturgical play with the impersonation of the angel or angels, and of the three Maries coming to anoint the body of the Lord, there was naturally a development of the heretofore symbolic sepulchrum in the altar, into what resulted finally in a separate structure.