Rancho San Pablo. 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, 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.