Luis Francisco de la Cerda y Aragón, 9th Duke of Medinaceli, 9th Duke of Medinaceli, was a Spanish noble and politician.
- Occupation
- diplomat, politician
- Position held
- Ambassador of Spain to the Holy See, ambassador, viceroy of Naples, Duke of Medinaceli
- Citizenship
- Spain
- Born
- August 2, 1660
- Died
- January 26, 1711