This diptych from 1522 is one of Jan Provoost’s most important works. It was the first diptych north of the Alps where a client appears together with Christ, who is ‘carrying a cross’. Both are portrayed up to the bust. The unknown monk is a Franciscan monk, not an Augustinian monk, as are the monks from St John’s Hospital. The rear side of the diptych is remarkable. You see a skeleton and a rebus in medieval French which means: ‘It’s hard to think of death; it’s good to think of me.’