A good biography of the 4th Duke of the Infantado, don Iñigo López de Mendoza, is given by Núñez de Castro (Núñez de Castro 1653, 180-186.) He was praised by Núñez de Castro as ‘a great musician, who played all instruments with proficiency, and was particularly accomplished at playing the lute’ (Schwarz 2016, 190)
According to Núñez de Castro, “Fue muy mañoso en obras exteriores de manos, pulido, gran músico, tocava todos los instrumentos con suficiencia, en especial en puntear un laud; era consumado.” (Núñez de Castro 1653, 181)
In “La Viuda” by Mateo Flecha thel Duque del Infantado is mentioned as one of the four protectors of music, the other three being Pope Leo X, Ferdinand the Catholic and Archbishop Alonso IV [sic = III] de Fonseca y Acevedo. Of the duke of the Infantado the text says: “¡Oh duque del Infantazgo / ‘que fuiste la mejor lança / qu’en Francia comía pan’” (enciso2010)
Concerning the duke and his love for music, in a footnote, Alberto del Campo cites and book by Ferran Muñoz, “Mencía de Mendoza y la Viuda de Mateo Flecha” (Valencia: Institució Alfons el Magnànim, 2001), p. 43. Further, in his accounr of his voyage to Spain, the Venetian Ambassador praised the musical chapel of the Duque del Infantado; see Andrea Navagero, “Viaje por España (1524-1526)”, translated and annotated by Antonio María Fabie (Madrid, Turner, 1983), p. 23; cited in Emilio Ros-Fábregas, “De L´homme armé a la Missa Pro Victoria: la música como representación de poder desde la corte borgoñona hasta Tomás Luis de Victoria” in Tomás Luis de Victoria y la cultura musical en la España de Felipe III, dir. por Alfonso de Vicente y Pilar Ramos (Madrid, Centro de Estudios Europa Hispánica, 2012), pp. 33-62. (campo2013, fn, 29:)