Iconography is used to determine the content of a work of art by: describing image conventions commonly associated with subjects and themes represented in images.

In this 12th-century relief, the central figure is obviously important because it is larger than all the others, facing the viewer, and has two prominent halos, one for the head and one for the whole body. The size, the centrality, and the frontality identify this figure as the center of attention and the halos certify holiness. Since the relief is located above the central door of a Christian church, it is reasonable to conclude that this figure represents Christ. Because he is surrounded by monsters on his left, it is also pretty certain that this relief represents, in a completely traditional way, Christ at the Last Judgement.