Which Flemish painter is noted for developing a varnish technique for tempera and is associated with the 1433 work 'A Man in a Turban'?

• A. Jan van Eyck
• B. Rogier van der Weyden
• C. Hieronymus Bosch
• D. Pieter Bruegel the Elder

Answer: (A)

This item tests knowledge of how Northern painters advanced painting techniques and how those methods show up in specific works. Jan van Eyck is the artist most closely tied to developing advanced varnish/ glaze techniques that build depth and luminosity in a finished portrait. He is associated with the 1433 portrait commonly titled A Man in a Turban, which showcases the meticulous detail and radiant surface made possible by careful layering and a final varnish over the paint. The other painters are known for important contributions in different directions—Rogier van der Weyden for expressive, emotionally charged figures; Hieronymus Bosch for fantastical imagery; and Pieter Bruegel the Elder for genre scenes and landscape works in a later period—so they don’t align with this specific technique and date.