Íñigo López de Mendoza, 4th Duke of the Infantado (d. 1566)
Íñigo Lopez de Mendoza y Pimentel, 4th Duke of the Infantado (Spanish: IV Duque del Infantado, 9 December 1493 – 17 September 1566) was a Spanish nobleman. He was made a Knight of the Order of the Golden Fleece in 1546, the 193rd to receive that distinction. Duke of the Infantado is a title first granted in 1475 and was inherited upon his father's death in 1531. He was also 5th Count of Saldaña, 4th Marquess of Argüeso, 4th Marquess of Campóo, 5th Marquess of Santillana, 5th Count of Real de Manzanares, Señor de Mendoza, Señor de Hita, and Señor de Buitrago.