Master Radovan, The Crucifixion

Mid-13th century
Relief
West tympanum, Cathedral of St. Lawrence, Trogir, Croatia

The cross is presented as tree-like in shape. On the extreme left and right are Mary and John respectively. A male and a female kneel left and right of the cross. Most likely they are intended to model the response of the viewer. Or they could be Adam and Eve.

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More of the Crucifixion

Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.