 It was painted in the Italian Byzantine tradition by the Sienese artist Lippo Memmi, brother-in-law of Simone Martini.At the centre of the chapel is the Reliquary of the Santo Corporale in silver, gilded silver and varicoloured translucent enamel containing the bloodstained corporal.This Gothic masterpiece, in the form of a triptych, was made by Sienese goldsmith Ugolino di Vieri between 1337 and 1338.