Rancho San Gregorio

The rancho extended from Tunitas Creek in the north to the mouth of Pomponio Creek and encompassed San Gregorio, California, San Gregorio State Beach and La Honda[2][3] Antonio Jose Buelna (1790–1846), son of José Antonio Buelna (1754–1821) married Maria Concepción Valencia (b.1798) in 1816.

After Antonio Buelna died in 1846, María Concepción Valencia married Francisco Rodriguez, a widower and grantee of Rancho Arroyo del Rodeo.

In 1849, María Concepción Valencia de Rodríguez sold a one square league of the eastern portion of Rancho San Gregorio to Salvador Castro.

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.

[5] A claim was filed for three square leagues by Encarnación Buelna de Rodríguez and heirs of María Concepción Valencia de Rodríguez with the Public Land Commission in 1853,[6] but was rejected on the grounds there was no proof that the Maria Concepcion Valencia Rodriguez, was the heir of the original grantee.