This small figure is located in a small crypt located upon entering Pedralbes Monastery cloister, following the right wing corridor. I can't tell you who this is, shame on me, I know. To highlight the mystery and solemnity of the icon I have burnt the borders of the image and rendered a lightning effect on the face with photoshop.
One thing I am sure of, the figure is related to Queen Elisenda de Montcada who secluded herself in the Monastery of Poor Clares in Pedralbes as a nun after the death of her husband, King James II of Aragon, also known as James II of Barcelona, called The Just.
She died there on June 19, 1364 and the tomb can be visited.