Portrait of Diego de Guevara (?) by Michel Sittow https://www.nga.gov/artworks/53-portrait-diego-de-guevara
Michel Sittow, a northern painter who was born in Estonia on the Baltic Sea but apprenticed in Bruges, was an acclaimed portraitist at the Spanish court. After Queen Isabella’s death in 1504, his peripatetic career took him to several northern European centers, including Burgundy, where he probably painted this portrait.
Description Shown from the chest up, a clean-shaven, pale-skinned man holds one hand