Mauricio Carlos de Onís y Mercklein
Mauricio Carlos de Onís y Mercklein (Dresden, Kingdom of Saxony, 17 September 1790 - Cantalapiedra, Spain, 24 November 1861) was a Spanish politician and diplomat who served as Minister of State in 1840 and as President of the Congress of Deputies.
Mauricio was son of Luis de Onís y González-Vara, an important diplomat who signed the Adams-Onís Treaty with the United States in 1819, and of Federika Christina von Mercklein. He married in Cantalapiedra, 11 December 1816, his first cousin Carolina de Onís, and had issue.
- Mauricio Carlos de Onís. Spanish Senate
- Cadenas y Vinent, Vicente de (1986). Extracto de los Expedientes de la Orden de Carlos III (1771-1847) 9. Retrieved 2010-03-17.
José del Castillo
|Minister of State
20 July 1840 – 29 August 1840
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