Weihenstephaner Altar: Der hl. Benedikt als Vater des abendländischen Mönchtums Rückseite: Kreuzannagelung Christi

Jan Polack was the leading panel painter in Munich at the end of the fifteenth century, and the Weihenstephan Altarpiece is among his major surviving works. The subject — Saint Benedict as father of Western monasticism — was commissioned for a Benedictine context, almost certainly Weihenstephan, the oldest operating brewery and monastic complex in Bavaria. Benedict's Rule had governed Benedictine life since the sixth century, and his authority was a subject of renewed institutional assertion after the Melk Reform movement of the 1450s–70s sought to restore stricter observance across German Benedictine houses. The reverse panel's Nailing to the Cross (Kreuzannagelung) served Good Friday liturgy.

Polack works in a style strongly influenced by the Flemish oil tradition filtered through South German taste: precise detail in fabric and physiognomy, warm amber skin tones, architectural settings combining Flemish curtained interiors with Southern German decorative woodwork motifs. Benedict's monastic habit is rendered with careful attention to the weight and fall of heavy wool. The reverse Passion scene shifts to a compressed, emotionally urgent composition with multiple figures pressing around the horizontal cross.