This city received the settlers of Ontiveros when it was abandoned and later grew large enough to briefly become the namesake for the governorate of Paraguay.
Margarita Gonzalez Ontiveros (1 September 1927, Chihuahua – 29 May 2006, Cuernavaca) was a Mexican-born mezzo-soprano and contralto.
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Born in Parral, Chihuahua, and raised by her mother Guadalupe Ontiveros Mardueño and a musician and band director in Oaxaca, Prospero Gonzalez.
While attending Beverly Hills High School, where she is an accomplished student, she works in near-sweatshop conditions in her sister's dress factory alongside her mother, Carmen (Ontiveros), who considers this to be her younger daughter's vocation.
Francisco Jimenez Ontiveros, engineer and lawyer, belonged to Sierro's most prominent family, which included his brother, Federico Jimenez Ontiveros, a medical doctor, hospital director in Seville, and General in the Spanish Air Force.