linguistic:voice_change, stylistic:style_transfer, structural:summarization
Workshop, unfinished or lost works

Members of his workshop completed works based on his designs in the years after his death in the summer of 1441. This was not unusual; the widow of a master would often carry on the business after his death. It is thought that either his wife Margaret or brother Lambert took over after 1441. Such works include the Ince Hall Madonna, Saint Jerome in His Study, a Madonna of Jan Vos (Virgin and Child with St Barbara and Elizabeth) c. 1443, and others. A number of designs were reproduced by second-generation Netherlandish artists of the first rank, including Petrus Christus, who painted a version of the Exeter Madonna.

Members of his workshop also finished incomplete paintings after his death. The upper portions of the right hand panel of the Crucifixion and Last Judgement diptych are generally considered the work of a weaker painter with a less individual style. It is thought that van Eyck died leaving the panel unfinished but with completed underdrawings, and the upper area was finished by workshop members or followers.

There are three works confidently attributed to him but known only from copies. Portrait of Isabella of Portugal dates to his 1428 visit to Portugal for Philip to draw up a preliminary marriage agreement with the daughter of John I of Portugal. From surviving copies, it can be deduced that there were two other "painted-on" frames apart from the actual oak frame, one of which was lettered with gothic inscription to the top, while a faux stone parapet provided support for her hands to rest upon.

Two extant copies of his Woman Bathing were made in the 60 years after his death, but it is known mostly through its appearance in Willem van Haecht 's expansive 1628 painting The Gallery of Cornelis van der Geest, a view of a collector's gallery containing many other identifiable old masters. Woman Bathing bears many similarities to Arnolfini Portrait, including an interior with a bed and a small dog, a mirror and its reflection, a chest of drawers and clogs on the floor; more broadly similar are the attendant woman's dress, the outline of her figure, and the angle from which she faces.