This tile painting I saw in the "Leiden-street" in Amsterdam. Christiaan Huygens (1629-1695) was a prominent Dutch mathematician, astronomer, physicist and horologist. His work included early telescopic studies elucidating the nature of the rings of Saturn and the discovery of its moon Titan, the invention of the pendulum clock and other investigations in timekeeping, and studies of both optics and the centrifugal force.
I have no idea why his portrait is on this facade, I couldn't find any connection with Amsterdam. He was born and lived in the Hague and studied in Leiden. Maybe the name of the street?
See for more Monday Murals here