Portrait of a captain, probably Sir Peter Denis (c.1713–1778)

This portrait of a captain, probably Sir Peter Denis, depicts a Royal Navy officer during the period of British naval supremacy following the Seven Years' War. Denis, a naval officer who served with distinction in multiple engagements, represented the professional officer class that sustained British maritime power during the eighteenth century. Dance's ability to capture both the formal dignity of naval rank and the individual character beneath the uniform was central to his commercial success with military and naval sitters. The probable identification with Denis, if correct, would place this among the portraits of distinguished naval figures that form a significant part of Dance's documented output.

The naval portrait renders the captain with professional authority, Dance's treatment of uniform details and the officer's bearing reflecting both the sitter's rank and the painter's academic training in formal portraiture.