[1] The grant on Monterey Bay extended from La Selva Beach on the north to Watsonville Slough on the south.
Jose Joaquin Castro, after serving as a soldier for 13 years, came with his wife Maria Antonia Amador (1780–1827) to settle the new community of Villa de Branciforte in 1798.
Castro received the two square league Rancho San Andrés grant in 1833.
[4] 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.
[8][9][10] In 1877, a partition suit (Briody vs. Hale) was brought and Rancho San Andrés was subdivided.