Salvator Mundi by Leonardo da Vinci (circa 1500)

Salvator Mundi by Leonardo da Vinci (circa 1500)

Presumably Leonardo da Vinci [Public domain]

Sourced: https://commons.wikimedia.org/wiki/File:Leonardo_da_Vinci_or_Boltraffio_(attrib)_Salvator_Mundi_circa_1500.jpg