Kwon Eung-su (權應銖, 1546–1608) was a mid-Joseon military official. When the Japanese Invasions of Korea began in 1592, he voluntarily gathered a body of soldiers and served as a general in the righteous army. In 1604, he was appointed a second-class Seonmu meritorious subject. This full-length portrait of Kwon presents him sitting in a chair and gazing to his right. His hands are courteously clasped inside his sleeves, and his feet are set in the shape of the Chinese character “八” on a footstool. He is wearing a nearly black dallyeong (round-necked robe), which was a robe worn by Joseon-era officials on a regular basis. His osamo (black silk winged hat) has a low crown and two wings adorned with designs of clouds and seven treasures, distinguishing it from the versions seen in late-Joseon portraits. The tiger rank badge on his chest indicating that Kwon was a military official adds a sense of decorativeness to the clothing. A patterned colored carpet called a chaejeon on the floor ornaments the lower section of the painting. Due to the absence of perspective, it appears two-dimensional, somewhat like wallpaper. The protruding skirt of the dallyeong in a triangular form next to the arm of the chair and the depiction of a dapho (sleeveless official robe) and cheollik (coat with pleats) visible between the side slit of the dallyeong are stylistic characteristics commonly found in seventeenth-century portraits of meritorious subjects. However, given the extensive use of shading in the skirts of the dallyeong and the color expressions in some parts of his attire, neither of which are found in other portraits of meritorious subjects, this portrait is more likely a later copy rather than the original version made when Kwon was appointed a meritorious subject. It is a significant example that reflects the Joseon-era tradition of descendants having portraits of their ancestors copied with care to hand them down for generations.