Before 1516 the confraternity of Saint Reinhold in Gdańsk commissioned a retable for the Saint Reinhold Chapel of the Saint Mary's Church in the city. The outer wings of the polyptych were painted in the workshop of Joos van Cleve, who depicted himself as Saint Reinhold.
The polyptych was shipped to Gdańsk in 1516 and today is on display in the Gallery of Medieval Art of the National Museum in Warsaw (oak, central panel 194 × 158 cm (76.4 × 62.2 in), each wing 194 × 75 cm (76.4 × 29.5 in)). It is the first confirmed work commissioned by patrons from territories of today's Poland.
The second could be Triptych with the Adoration of the Magi with a monarch in a chain of the Order of the Golden Fleece in the Gemäldegalerie, Berlin (oak, central panel 72 × 52 cm (28.3 × 20.5 in), each wing 69 × 22 cm (27.2 × 8.7 in)). It was acquired from the Reimer Collection in Berlin in 1843. Possibly commissioned by Sigismund I of Poland.
The outer parts of the wings were painted en grisaille with effigies of Saints Christopher and Sebastian, which may indicate the donor, his patron saints, however among recipients of the Order of the Golden Fleece between 1451 and 1531 there were no Sebastian and only one Christopher - Christopher, Margrave of Baden-Hachberg (1453-1527). Although the latter was portraited in the similar headdress (crinale), he was not a king to depict himself as one of the Magi, and his facial features are completely different. Also other garments are very close to those from the known effigies of the Polish monarch - eg. Communion of Sigismund I, a leaf from the Prayer Book of Sigismund I the Old by Stanisław Samostrzelnik from 1524 in the British Library. The king of Poland was awarded the Order of the Golden Fleece in 1519 at the age of 52.
The sources on artistic contacts of the Polish court at that time with the Netherlands are very scarce. Among commissions confirmed in preserved inventories and accounts the are the following.
In 1526 queen Bona Sforza commissioned in Antwerp through Seweryn Boner, 16 tapestries "de lana cum figuris et imaginibus" of 200 flemish square inches in its entity. They were transported to Kraków via Frankfurt upon Main, Nuremberg and Wrocław.
In 1533 king Sigismund I commissioned through Boner and Mauritius Hernyck in Antwerp 60 tapestries with coat of arms od Poland, Lithuania and Duchy of Milan among which 20 bigger with green and blue background, 26 tapestries without coat of arms and 6 tapestries with figural scenes. The commission cost was 1170 florins and tapestries were transported to Kraków via Nuremberg, Leipzig and Wrocław.
In 1536 the king acquired 7 paintings in Flanders to adorn the apartments of prince Sigismund Augustus at the Wawel castle for 35 florins ("pro septem imaginibus Flandrensibus pictis").
The subtle marble bust of Queen Barbara Zapolya from Olesko Castle in the style of Netherlandish renaissance was probably part of a larger commission made by Sigismund I around 1520.