The Capital associated to the Olibrius Column Statue?

It is assumed that this capital is to be associated with the column statue of Olibrius, the torturer of Saint Margaret.

It is clear that, in the absence of a preserved contact area between the two elements, it was difficult to definitively associate them in the reconstruction proposed in 1978 by Léon and Sylvia Pressouyre. 

Without material evidence, it is impossible to determine with certainty which face would have been presented above Olibrius, on the inner side of the cloister gallery. The most propable choice would be to depict the decapitation scene, as the sacrifice of saint martyrs serves as a reminder of the sacrifice of Jesus.