Leoncio Alonso González de Gregorio, 22nd Duke of Medina Sidonia

Leoncio Alonso González de Gregorio y Álvarez de Toledo, 22nd Duke of Medina Sidonia, GE (born 3 January 1956) is a Spanish aristocrat and historian. Born in Madrid, Medina Sidonia is the eldest son of Leoncio González de Gregorio y Martí and his wife Luisa Isabel Álvarez de Toledo, 21st Duchess of Medina Sidonia. The Duke is Professor of History at the University of Castile-La Mancha and of the Diplomatic School of the Ministry of Foreign Affairs and Cooperation.

Family
González de Gregorio married firstly his distant cousin María Montserrat Viñamata y Martorell, younger daughter of Luis Viñamata y Emmanueli and The Countess of Alba de Liste, on 12 December 1983, and divorced in 1998. They had two children:


 * Don Alonso Enrique González de Gregorio y Viñamata, 14th Duke of Fernandina (b. 1983)
 * Doña María de la Soledad González de Gregorio y Viñamata (b. 1989), who married in September 2017 Jérémy Bégard.

The Duke married secondly Pamela García Damián, of Venezuelan origin, daughter of Armando García Liceaga y Pérez de Viñaspre and María Pilar Damián Gracia, in 2001.

Titles

 * 22nd Duke of Medina Sidonia, Grandee of Spain
 * 18th Marquess of Villafranca del Bierzo, Grandee of Spain
 * 17th Marquess of los Vélez, Grandee of Spain
 * 26th Count of Niebla

Styles

 * The Most Excellent The Count of Niebla (1956–2008)
 * The Most Excellent The Duke of Medina Sidonia (2008– )