Portrait Of Galileo Galilei (1564-1642) Justus Sustermans (1597-1681)

The picture has something of this: portrait, people, facial hair, mustache, man, elderly, leader, writer, music, beard, wear, musician, lid, poet, scientist.
Perhaps it’s a close up of a painting of a man with a long white beard and wearing a black shirt with a white collar and a white ruff.