The Mass of Saint Gregory

Executed in the Flemish Baroque style, the work showcases meticulous attention to detail, evident in the intricate patterns on the robes and tablecloth, characteristic of the region's artistic traditions.

Created circa 1548, the painting is now part of the permanent collection at the Museum of Fine Arts, Houston.

As a product of 16th-century Flemish art, the piece reflects the religious and artistic values of its time, with Claeissens' familial and regional influences likely shaping its composition and style.

While specific impact on later artists is not widely documented, the painting remains a notable example of Flemish Baroque religious art, contributing to the broader understanding of the period's artistic and religious practices.