Jacoba of Bavaria, Countess of Holland and Zeeland

Jan Mostaert painted this Portrait of Jacoba of Bavaria around 1520, depicting the historical Countess of Holland and Zeeland—who died in 1436—from historical or genealogical records rather than from life. Jacoba of Bavaria was one of the most important women in fifteenth-century Netherlands history, her complicated marital history and political struggles for control of Holland making her a significant figure in the regional memory. Mostaert's ability to construct a convincing portrait from historical evidence rather than direct observation demonstrates the period's interest in historical portraiture as a form of genealogical and political commemoration. As court painter to Margaret of Austria, Mostaert had access to dynastic records and the historical consciousness that valued such commemorative portraits of significant predecessors.

The portrait shows Mostaert's refined court technique with careful costume rendering, gentle characterization, and the dignified presentation characteristic of his aristocratic portrait practice.