|Prince Balthasar Charles With a Dwarf|
|Spanish: El príncipe Baltasar Carlos con un enano|
|Medium||Oil on canvas|
|Dimensions||128 cm × 102 cm (50 in × 40 in)|
|Location||Museum of Fine Arts, Boston|
The prince is shown in the uniform of a captain-general (adapted to his infant state but still including a commander's baton in his right hand, a shoulder sash and a sword hilt in his left hand). The dwarf holds an apple and a rattle, to contrast with the heir to the most powerful monarchy in Europe, who is shown as already in military training and not needing these usual children's attributes. The prince's static posture, in contrast to the dynamism of the dwarf's figure, turning to contemplate the prince, has caused some art historians to think that the painting was originally only of the prince, with the dwarf added later.