Rancho San Pablo was a

land grant A land grant is a gift of real estate—land or its use privileges—made by a government or other authority as an incentive, means of enabling works, or as a reward for services to an individual, especially in return for military service. Grants ...

in present-day

Contra Costa County, California Contra Costa County (; ''Contra Costa'', Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States census, the population was 1,165,927. Th ...

given in 1823 by Governor Luís Antonio Argüello to Francisco María Castro (1775–1831), a former soldier at the San Francisco Presidio and one-time ''alcalde'' of the Pueblo of San José. The grant was reconfirmed by Governor José Figueroa in 1834 to the heirs of Francisco Castro, including Víctor Castro. The San Pablo grant covered what is now Richmond, San Pablo, El Cerrito, and

Kensington Kensington is an area of London in the Royal Borough of Kensington and Chelsea, around west of Central London. The district's commercial heart is Kensington High Street, running on an east–west axis. The north-east is taken up by Kensingt ...

in western Contra Costa County.

History

The land had previously been grazing land for cattle belonging to the Misión Dolores, but was secularized by the new Mexican republic. Francisco Maria Castro lived there with his wife María Gabriela Berreyesa and family from the late 1820s until his death in 1831. Governor of Mexican

Alta California Alta California (, ), also known as Nueva California () among other names, was a province of New Spain formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but was made a separat ...

, Juan Alvarado, married one of the Castro daughters in 1839. After his term as governor was completed, they retired to her family property on Rancho San Pablo. With the cession of California to the United States following the

Mexican–American War The Mexican–American War (Spanish language, Spanish: ''guerra de Estados Unidos-México, guerra mexicano-estadounidense''), also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, ...

, the 1848

Treaty of Guadalupe Hidalgo The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). It was signed on 2 February 1848 in the town of Villa de Guadalupe, Mexico City, Guadalupe Hidalgo. After the defeat of its army and the fall of the cap ...

provided that the land grants would be honored. As required by the Land Act of 1851, a claim for Rancho San Pablo was filed with the

Public Land Commission The California Land Act of 1851 (), enacted following the Treaty of Guadalupe Hidalgo and the admission of California as a state in 1850, established the California State Lands Commission to determine the validity of prior Spanish and Mexican l ...

by Joaquín Ysidro Castro in 1852, and the grant was

patented A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A ...

to Joaquín Ysidro Castro in 1878. A separate claim was filed by William C. Jones et al in 1853 but was rejected.United States. District Court (California : Northern District) Land Case 277 ND
/ref>

References

{{History of Richmond, California San Pablo Richmond, California San Pablo San Pablo