never lived on the rancho himself, but his four sons and their families did. With their wives, families, landless Mexican laborers, and surrounding native peoples, the Peralta sons established the first Spanish-speaking communities in the East Bay. As the rancho prospered, the Peralta brothers built newer and bigger houses. The main hacienda contained two adobes, and some twenty guest houses, and became an established stop for travelers along what was during the Spanish era the only camino real on the eastern side of San Francisco Bay. The hacienda became the social and commercial center of this vast rancho. Annual rodeos and cattle round-ups, horse racing, and games often took place here. The Peraltas eventually had over 8,000 head of cattle and 2,000 horses grazing on the rancho, and built a wharf on the bay near the hacienda headquarters in order to trade the rawhide and tallow produced by their cattle. The Peralta family built a total of 16 houses over a fifty-year period on Rancho San Antonio. There were eleven adobes, three frame houses, one brick house, and one built of "logs and dirt". Son Domingo's home was located on Codornices Creek adjacent to the site of what is today St. Mary's College High School. Son Vicente's home was located in what is today the heart of Oakland's Temescal district. In 1842, Luís María Peralta decided to split the rancho among his sons. His five daughters received his cattle and his San Jose adobe and land. He died in 1851, but not before telling his sons to steer clear of the California gold rush, stating, "The land is our gold." However, it would not be easy for the Peraltas to hold on to their property. Although the United States government promised all rights of citizenship and property ownership to the Californios through the Treaty of Guadalupe Hidalgo signed at the end of the Mexican–American War in 1848, the 1851 U.S. Federal Land Act required the Californios to prove their land titles in court. The resulting litigation lasted years. In the interim, squatters continued to overrun Rancho San Antonio, stealing and killing cattle and even subdividing and selling land belonging to the Peraltas. Although the United States Supreme Court confirmed the Peralta title in 1856, the Peralta family had their own internal title dispute to resolve. The Peralta sisters apparently felt cheated out of the family land, and contested their brothers' claim to the Rancho San Antonio land grant. The court case, known as the "Sisters Title case" was eventually resolved in the brothers' favor by the California Supreme Court in 1859. By 1860, the brothers' land holdings had been substantially reduced, partly to pay for the previous decade's litigation and to cover newly imposed property taxes. Among the lawyers representing them was Horace Carpentier who acquired large chunks of the Peralta lands as compensation for his services. After the 1868 Hayward earthquake destroyed many of the rancho's buildings, Antonio, built what is now known as the Peralta Hacienda, an Italianate Victorian two-story frame house in 1870, located in what is today the Fruitvale district of Oakland. In 1872, the combined property of the sons of Luís María Peralta was assessed at approximately $200,000. By the time of Antonio Peralta's death in 1879, he only had left of the original his father gave him. In the end, the 1870 house and the remnants of Antonio's share of the land grant were sold by his daughter Inez Galindo in 1897 to developer Henry Z. Jones who laid out streets and parcels and moved the 1870 house to its present location. That house and a brick house are the only two remaining structures out of the entire complex. The 1870 House now sits in Peralta Hacienda Historical Park in Oakland and is open for tours.
