 Luckily, it was preserved underneath the plaster with the exception of the head of Christ which was documented to have been removed so that the plaster could fill the tympanum completely.The West façade of St. Lazare contains the tympanum (1130–1135), signed "Gislebertus hoc fecit "("Gislebertus made this") within the portico which is ranked amongst the masterpieces of Romanesque sculpture in France.However, art historian Linda Seidel challenged this reading, arguing that instead Gislebertus was a patron.