María del Rosario Ibarra de la Garza, also known by her marital name Rosario Ibarra de Piedra, was an activist and prominent figure in the politics of Mexico. She was a presidential candidate and was the serving president of Comité Eureka at the time of her death.

Saltillo is the capital and largest city of the northeastern Mexican state of Coahuila and is also the municipal seat of the municipality of the same name. Mexico City, Monterrey, and Saltillo are all connected by a major railroad and highway. As of a 2020 census, Saltillo had a population of 879,958 people, while the population of its metropolitan area was 1,031,779, making Saltillo the largest city in the state of Coahuila, and the 14th most populated metropolitan area in the country.