The Buxtehude Altar

Master Bertram of Minden was the leading painter in late fourteenth-century Hamburg, the creator of the celebrated Grabow Altarpiece (1379–83) in the Kunsthalle Hamburg. The Buxtehude Altar, also in the Hamburger Kunsthalle, represents his second surviving major altarpiece complex and takes its name from the provenance of its acquisition. Bertram's work occupies a pivotal position in northern German art at the moment when the influence of the Bohemian school, Flemish innovations, and the older German Gothic tradition were converging. His figure style is characterised by a solidity and directness rooted in the sculptural tradition — his altarpiece figures have the blocky, clearly articulated physical presence of carved stone rather than the elegant elongation of French Gothic. An undated oil on canvas attribution is unusual for Bertram, as his known works are tempera on panel. The entry in the database may reflect a later restoration or misattribution of medium.

Bertram's characteristic technique in his documented works involves tempera application with a careful under-drawing stage, building figures with clear contour lines and relatively flat, even colour areas typical of the International Gothic tradition. His palette combines strong primaries — red, blue, gold — in the heraldic manner of Gothic altarpiece painting. The Buxtehude Altar's scenes from Genesis and the Life of Christ display narrative clarity and emotional directness.