Don Agustín Fernando Muñoz y Sánchez, 1st Duke of Riánsares, 1st Marquess of San Agustín, 1st Duke de Montmorot, was the second and morganatic husband of Queen Maria Christina, Regent of Spain.
- Occupation
- military personnel, politician
- Position held
- member of the Senate of Spain
- Citizenship
- Spain
- Born
- May 4, 1808
- Died
- September 13, 1873
