This painting by Jan van Eyck is a masterful representation of the Arnolfini marriage, a 15th century Flemish ceremony. The painting depicts a wealthy Italian merchant, Giovanni di Nicolao Arnolfini, and his wife, Giovanna Cenami, standing in a room
From Wikipedia
The Arnolfini Portrait is an oil painting on oak panel by the Early Netherlandish painter Jan van Eyck, dated 1434 and now in the National Gallery, London. It is a full-length double portrait, believed to depict the Italian merchant Giovanni di Nicolao Arnolfini and his wife, presumably in their residence at the Flemish city of Bruges.