Las Poquianchis
Mexican serial killers

María Delfina González Valenzuela (1912 – 17 October 1968), María del Carmen González Valenzuela (1918–1949), María Luisa González Valenzuela (1920 – 19 November 1984) and María de Jesús González Valenzuela (1924–1990), known as Las Poquianchis, were four sisters from the western Mexican state of Jalisco. From 1950 until 1964, the sisters ran "Rancho El Ángel", the locus of their large-scale prostitution ring and the site of the murder of at least 91 people, but it is believed that the four sisters killed more than 150 people or even more than 200 people. Guinness World Records called them the "most prolific murder partnership".
Biography
The sisters were born in the rural town of El Salto de Juanacatlán, Jalisco, to Isidro Torres, a policeman, and his wife, Bernardina Valenzuela. Their father was reportedly a strict man who expected his daughters to not wear makeup or interact with boys. If they broke his rules, the sisters were punished by beatings or confinement in the very jail cells where he interrogated prisoners. Contemporary and later accounts report that their father was a policeman with a reputation for brutality and alcoholism.
Following an incident where Isidro Torres shot and killed a man with his service pistol during a heated argument, the family had to relocate to the village of San Francisco del Rincón, Guanajuato, where they had to change their surname. The resulting loss of income and isolation caused them to sink into deep poverty.
With their father's abuse worsening, the sisters pooled their money to open a bar to support themselves financially.
This brief starts where responsible research should: with the source description of “Las Poquianchis” as mexican serial killers. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as mexican serial killers. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 24, 2026. The linked authority identifier is Q2462038. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1912, 1968, 1918 and 1949.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Las Poquianchis”, its source revision and the description used here.
- Expand the search: follow Las Poquianchis primary sources, Las Poquianchis archive and Poquianchis research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Las Poquianchis”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Las Poquianchis” 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.