"Group portrait of "look-alike" trio of men (detail)." Pieter Verneulen Cornelis de Han Haals Museum of Art, Haarlem, Netherlands

Strong facial, particularly nasal, resemblance of those portrayed, who have different "family" names, thus presumably different fathers and mothers. A biologic explanation may be that they are unknowingly half paternal [non maternity is rare] brothers or are otherwise related. An alternative is that the painter was manneristic, thus inaccurate.