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, 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.
[3][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.
As required by the Land Act of 1851, a claim for Rancho San Pablo was filed with the Public Land Commission by Joaquín Ysidro Castro in 1852,[5][6] and the grant was patented to Joaquín Ysidro Castro in 1878.