Bernardino Fernández de Velasco, 6th Duke of Frias, Grandee of Spain, (8 February 1609 – 31 March 1652), was a Spanish nobleman and diplomat.
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Biography
Bernardino Fernández de Velasco was the oldest son of Juan Fernández de Velasco and of María Angela de Aragón y Guzmán. He inherited the title of Constable of Castile and like his father, Bernardino was Governor of the Duchy of Milan between 1647 and 1648. He was also Viceroy of Aragon between 1645 and 1647. King John IV of Portugal was his nephew.
Descendants
In 1629, the Duke married Isabel María de Guzmán, with whom he had four children. He married for a second time with María Enríquez Sarmiento de Mendoza, but they had no issue.
By Isabel María de Guzmán:
Íñigo Melchor de Velasco, 7th Duke of Frías
Juana de Velasco y Tovar, was married three times, with:
Enrique Felípez de Guzmán, 1st Marquis of Mayrena, 2nd Duque of Sanlúcar de Barrameda



