Christopher Columbus by an unidentified artist, 1584, engraving on paper from <i>Les Vrais Pourtraits et Vies des Hommes Illustres</i>, from the National Portrait Gallery which has explicitly released this digital image under the CC0 license. (<a rel="nofollow" class="external free" href="https://npg.si.edu/object/npg_NPG.2009.78">https://npg.si.edu/object/npg_NPG.2009.78</a>)
Unidentified artist
National Portrait Gallery