Íñigo Fernández de Velasco, 4th Duke of Frías, Grandee of Spain, (in full), (c. 1520 – 1585), was a Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 nobleman.

Fernández de Velasco was the son of Juan Sancho de Tovar, 1st Marquis of Berlanga

Juan Sancho de Tovar, 1st Marquis of Berlanga

Juan Sancho de Tovar, 1st Marquis of Berlanga was a Spanish nobleman.Tovar was the second son of Íñigo Fernández de Velasco, 2nd Duke of Frías and of María de Tovar, Lady of Berlanga...

 and of María Girón, Lady of Gandul and Marchenilla. His original name was Íñigo de Tovar y Velasco, but he changed it and re-adopted his father's original last name when he inherited the Dukedom of Frías from his uncle Pedro Fernández de Velasco

Pedro Fernández de Velasco, 3rd Duke of Frías

Pedro Fernández de Velasco, 3rd Duke of Frías , Grandee of Spain was a Spanish nobleman.Fernández de Velasco was the son of Íñigo Fernández de Velasco, 2nd Duke of Frías and of María de Tovar, Lady of Berlanga...

, who had no issue. He married Ana Pérez de Guzmán y Aragón, daughter of Juan Alfonso Pérez de Guzmán, 6th Duke of Medina Sidonia

Juan Alfonso Pérez de Guzmán, 6th Duke of Medina Sidonia

Juan Alfonso Pérez de Guzmán y de Guzmán-Zúñiga, 6th Duke of Medina Sidonia was the son of Juan Alfonso Pérez de Guzmán, 3rd Duke of Medina Sidonia, half brother of Enrique Pérez de Guzmán, 4th Duke of Medina Sidonia, and the brother of Alfonso Pérez de Guzmán, 5th Duke of Medina Sidonia...

, with whom he had eleven children.

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