Pedro de Alcántara Alonso Pérez de Guzmán y Lopez-Pacheco, 14th Duke of Medina Sidonia was a Spanish noble who became Duke of Medina Sidonia in 1739.
- Occupation
- aristocrat
- Position held
- caballerizo mayor del rey, caballerizo mayor de la reina, Member of the Royal Spanish Academy
- Citizenship
- Spain
- Born
- 1724
- Died
- January 6, 1779