Rancho San Jacinto Viejo

Rancho San Jacinto Viejo was a 35,503-acre (143.68 km2) Mexican land grant in present-day Riverside County, California given in 1842 by Governor Pro-tem Manuel Jimeno to José Antonio Estudillo.

In 1824, José Antonio Estudillo, a lieutenant in the Mexican army, married María Victoria Dominguez.

María Victoria's father, Juan José Dominguez, was the grantee of Rancho San Pedro.

José Antonio Estudillo was appointed administrator and major domo at Mission San Luis Rey in 1840.

[3] With the cession of California to the United States following the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.

Californio politician José Antonio Estudillo , of the prominent Estudillo family of California , was granted Rancho San Jacinto Viejo in 1842.