Mauricio Carlos de Onís y Mercklein

Mauricio Carlos de Onís y Mercklein (Dresden, Holy Roman Empire, 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.

References

Political offices
Preceded by José del Castillo Acting	Minister of State 20 July 1840 – 29 August 1840	Succeeded by Juan Antoine

Persondata
Name	Onis y Mercklein, Mauricio Carlos de
Alternative names
Short description	President of Congress of Deputies (Spain)
Date of birth	17 September 1790
Place of birth	Dresden, Holy Roman Empire
Date of death	24 November 1861
Place of death	Cantalapiedra, Spain