A portrait of an intelligent person of "short stature" or "nanism" (enano in Spanish). The bowed legs and the disproportional head size, body and limbs are obvious. In a medical perspective, this is an instance of "dwarfism" (disproportional short body "habitus" - a relatively large head, bowed short limbs and digits and proportional facial features combined with a lack of spinal deformations (scoliosis, gibus, etc.). Such signs combine signal a narrow scope of possible diagnoses. "Midget" is a term to denote instances of "dwarfisms" or "short stature syndromes" where body proportions are "normal".
As illustrated by links to a large array of companion images, artists captured well the cardinal features of "short stature syndromes" without awareness of the inherent medical implications - an illustration that "trained eyes" can see features that unfortunately many clinicians have not been trained "to see".
(in Spanish) El retrato fue en algun tiempo propiedad del Marques Leganes bajo el apodo "enano del conde de Olivares". En aquella epoca, bufones inteligentes eran miembros de las cortes reales.