Duc of the Court of Francis I, 1530.
Francis I is regarded as the first French king of the Renaissance. During his reign there was a significant development of the arts in France. When he took office in 1515 he was regarded as a humanistically educated king. Francis I commissioned numerous works and brought artists to France, including Andrea del Sarto and Leonardo da Vinci in 1516. Leonardo da Vinci remained in France until his death.
Source: Le Musée cosmopolite. Costumes actuels de tous les peuples, gravés sur acier par les premiers Graveurs de Paris. Paris, Ancienne Mon Aubert, ca. 1850-1860.