Who are depicted in the left panel of the Merode Altarpiece viewing the Annunciation?

In the left panel of the Merode Altarpiece, the donors are depicted, typically identified as Robert and Elizabeth Campin. They are shown in a contemporary Flemish setting, observing the Annunciation scene in the center panel from a distance. Their inclusion suggests a personal connection to the divine event, emphasizing both their piety and the importance of patronage in the art of the time. The detailed representation of their faces and attire highlights the era's focus on individual identity and realism.