Luis Mariano Santos
Spanish politician

Luis Mariano Santos Reyero (born 1969) is a Spanish politician of the Leonese People's Union. He was the party's secretary general from 2017 to 2025. He was its sole representative elected to the Cortes of Castile and León in 2015 and 2019, and one of three elected in 2022. In 2023, he was elected mayor of his hometown of Cistierna.
Biography
Born in Cistierna, Province of León, he graduated in political sciences from the Complutense University of Madrid and has a Master's degree in human resources. He was elected as a councillor in his hometown in 2003.
In March 2015, Santos was chosen as his party's list leader for the Castilian-Leonese regional election in May, having previously been number 2 to Alejandro Valderas. He was his party's only elected representative. At the party's 12th Congress, in November 2017, he became secretary general and vowed to return the party to its 1990s heyday.
In 2019, Santos was again the only UPL member elected to the Cortes.
The public source identifies “Luis Mariano Santos” as spanish politician. This brief keeps that definition visible, then builds a research path around Luis, Mariano and Santos.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Jul 6, 2026. The linked authority identifier is Q28501890. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1969, 2017, 2025 and 2015.
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This entry incorporates text from “Luis Mariano Santos” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.