The image is an engraved portrait depicting a man in semi-profile position facing forward with a slight turn to the right. The man has a pointed beard and mustache, a high forehead, and shoulder-length wavy hair. He is wearing a detailed garment with a high lace ruff around his neck, typical of the fashion of that period. The clothing has intricate patterns. There are no visible jewelry or objects on the man. The background features an ornate oval frame with Latin and Dutch inscriptions and decorative elements like peacock feathers. Below the oval is text identifying the person as Reinier van Olden-Barnevelt.