His father was Bernardino Fernández de Velasco, 6th Duke of Frías and his mother was Isabel Maria de Guzmán. King John IV of Portugal was his cousin. He married Maria Teresa de Benavídes Dávila y Corella and had one daughter, María Remigia, VII Marquesa de Berlanga (c. 1678 to 1734).
His painting by Murillo from 1659 can be seen in the Louvre. After his death in 1696, the title of Duke of Frías went to his nephew José Fernández de Velasco, 8th Duke of Frías (circa 1665 – 1704).
Additional information
Notes
^In full, Spanish: Don Íñigo Melchor Fernández de Velasco y Guzmán, séptimo duque de Frías, décimo primer conde de Haro, quinto conde de Castilnovo, décimo segundo Condestable de Castilla, mayorazgo y señor de la casa de Velasco, señor de los Valles de Soba y Ruesga, señor del Estado de Briviesca, señor del Estado de Belorado, caballero de Santiago, comendador de Usagra, Mayordomo mayor de Carlos II, gobernador del Reino de Galicia y de los Paises Bajos
Sources
Castro Pereira Mouzinho de Albuquerque e Cunha, Fernando de (1995). Instrumentário Genealógico - Linhagens Milenárias (in Portuguese). pp. 329–30.
Hobbs, Nicolas (2007). "Grandes de España" (in Spanish). Retrieved 15 October 2008.
Instituto de Salazar y Castro. Elenco de Grandezas y Titulos Nobiliarios Españoles (in Spanish). periodic publication.
"Genealogia" (in Portuguese). Archived from the original on March 8, 2007. Retrieved 15 October 2008.