| Ildefonso Díez de Rivera | |
| Office: | Minister of State |
| Count of Almodóvar | |
| Term End: | [1] |
| Predecessor: | Antonio González |
| Predecessor1: | Juan Álvarez Mendizábal |
| Successor1: | Francisco Javier de Istúriz |
| Office2: | President of the Senate |
| Term2: | 1841–1842[2] |
| Successor2: | Álvaro Gómez Becerra |
| Predecessor2: | José María Moscoso de Altamira Quiroga |
| Office3: | Minister of War |
| Office5: | President of the |
| Successor4: | José Ramón Rodil |
| Successor3: | Baldomero Espartero |
| Successor5: | Francisco Javier de Istúriz |
| Birth Date: | 22 January 1777 |
| Birth Place: | Granada, Spain |
| Death Place: | Valencia, Spain |
Don Ildefonso Díez de Rivera y Muro (22 January 1777 in Granada, Spain – 26 January 1846 in Valencia, Spain) was a Spanish noble and politician[3] who served as Minister of State in 1836 and as President of the Senate.
He married, the 15 April 1815, Pascuala Ortiz de Almodóvar, 3rd Countess of Almodóvar.
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