A bearded man in dark, gleaming armor stands against a shadowy background, his head turned slightly to his left as he meets the viewer’s gaze. His right hand, firm and pale, grasps a wooden staff or baton that rises from the lower left of the panel, its surface rendered with swift, textured strokes. The sitter’s face is lit from the left, illuminating the smooth planes of his forehead, nose, and cheeks, while his deep-set eyes and thick beard are modeled with subtle gradations of tone.

The armor is painted with a close attention to the play of light on metal, from the bright highlights on the shoulder to the tiny dots and dashes that suggest rows of rivets and the texture of mail. On the right shoulder, four white squares stand out against the dark steel, their edges roughly brushed, hinting at a heraldic device or decoration. Behind the figure, a vertical strip of deep red emerges at the right edge, its rich tone and loose handling contrasting with the otherwise muted palette.

The brushwork is varied: the face and hand are modeled with smooth, blended strokes, while the armor and background show rougher, more visible marks, especially where the light catches the metal or the red curtain. The composition is tightly focused on the upper body, with the sitter’s shoulders filling the width of the panel and his head placed just off center, creating a sense of presence and immediacy. This portrait depicts Guidobaldo II della Rovere, Duke of Urbino, as stated in the title and subject information. The genre is portrait, and the painting belongs to the Venetian school, as identified in the documentation.