The Master of Oviedo
SS. Simon and Jude
The Holy Chamber, Oviedo Cathedral, Spain
These figures were identified as Simon and Jude by the audio guide provided by the cathedral. The Golden Legend says they were slain together by pagan magicians. Below their feet are harpies, creatures with the bodies of birds and human faces. Fanciful creatures are common in Romanesque columns and may be without any specific significance in this case.
The same chamber contains similar sculptures of the other apostles.
This image in full resolution
More of St. Jude Thaddeus
More of St. Simon the Apostle
Photographed at the site by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.