Nemesio Rubén Oseguera Cervantes, known as El Mencho, was 59 years old when he died on 22 February 2026, based on the widely cited birthdate of 17 July 1966.

If you’re asking more generally “how old was El Mencho?” in the sense of his lifespan, you can frame it as:

  • Born: 17 July 1966.
  • Died: 22 February 2026.
  • Age at death: 59 years.

Some sources note an alternative possible birth year of 1964, which would make him 61 at death, but the 1966 date is the one most official and media profiles use.