This sculpture most likely represents Saint John the Evangelist, who is often depicted as a young, beardless man. He holds up his Gospel and points to it with his right hand. This figure is flat on the back, indicating that it may have been positioned against a wall at the back of an altar.
Sources:
- Joan A. Holladay and Susan L. Ward, _Gothic Sculpture in America III: The Museums of New York and Pennsylvania_, 2016, 337-338.