D. Juan Fernández de Velasco y Tovar, V. duque de Frías

http://en.wikipedia.org/wiki/Juan_Fern%C3%A1ndez_de_Velasco,_5th_Du...

Juan Fernández de Velasco, 5th Duke of Frías[1] (c. 1550 – 15 March 1613) was a Spanish nobleman and diplomat.

Juan Fernández de Velasco was the son of Íñigo Fernández de Velasco; and of Maria Angela de Aragón y Guzmán El Bueno. He inherited his father's title of Constable of Castile, and was present at the signing of the Treaty of London (1604). Juan Fernández de Velasco was also Governor of the Duchy of Milan in the period 1592-1600 and 1610-1612. In 1595, he led the Spanish forces in the Battle of Fontaine-Française against the French, where he let victory slip through his fingers, due to excessive caution. http://en.wikipedia.org/wiki/Battle_of_Fontaine-Fran%C3%A7aise

Descendants

Around 1580, the Duke married María Girón de Guzmán, eldest daughter of Pedro Girón de la Cueva, 1st Duke of Osuna. Together they had a son and a daughter. The daughter, Ana de Velasco y Girón in turn married Teodósio II, Duke of Braganza and in 1604 gave birth to João, 8th Duke of Bragança, who was crowned King João IV of Portugal on 1 December 1640. In 1608, after the death of his first wife, Juan Fernández de Velasco married Joana de Córdoba y Aragón, and together they had three children:

By María Girón de Guzmán:

Íñigo Fernández de Velasco, 9th Count of Haro

Ana de Velasco y Girón, married Teodósio II, Duke of Braganza being the mother of king John IV of Portugal
By Joana de Córdoba y Aragón:

Bernardino Fernández de Velasco, 6th Duke of Frías, married Isabel Maria de Guzmán

Luis de Velasco, 1st Marquis del Fresno, married Catarina de Velasco
Mariana Fernandez de Velasco, deceased 1650, married António II Alvarez de Toledo, 7th Duke of Alba, 4th duke of Huéscar, a Knight of the Order of the Golden Fleece since 1675, (1615–1690).