Rancho Ex-Mission San Diego

The grant extended eastward from the Pueblo San Diego to Rancho El Cajon, and encompassed present day east San Diego, Normal Heights, La Mesa, Lemon Grove, and Encanto.

Pío Pico decreed that the mission rancho be sold to Santiago Argüello "in consideration of past services to the territorial government."

According to the terms of the 1846 deed, Argüello was required to pay the debts of the Mission, support the priests, and maintain religious services.

He aided the American cause during the Mexican–American War, was captain of a troop of the California battalion, and died at the Tia Juana Rancho in 1862.

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.