Eugène Viollet-le-Duc,
Dictionary of French Architecture from the 11th to 16th Century…
“ In the architecture of the 12th, 13th and 14th centuries, the architects made use of the baguette among the beams of columns to accentuate their diameter by opposition, and give them more force (3) to the eye. One often finds in the buildings of the 13th and 14th centuries of the baguette engaged in the angles of the square piers, and especially in the jambs of the doors, to avoid the sharp edges which are degraded easily or sharp edges which can wound (4) . ”
