The Diocese of Orange (Latin: Dioecesis Arausicanae in California; Spanish: Diócesis de Orange; Vietnamese: Giáo phận Quận Cam) is a Latin Church ecclesiastical territory or diocese of the Catholic Church whose territory comprises the whole of Orange County, California, in the United States. It may sometimes be referred to as the Diocese of Orange in California, to avoid confusion with the historical Diocese of Orange in Orange, France, which was dissolved in 1801. The Diocese of Orange is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Los Angeles, from which territory it was erected in 1976. The diocesan cathedral is the Christ Cathedral in the Garden Grove. The current diocesan bishop is Kevin Vann, who was officially installed on December 10, 2012. Diocesan offices are situated at the Christ Cathedral campus in Garden Grove, Orange County California. In addition to its 56 parish churches, the diocese oversees 41 schools and three general hospitals, plus one disabled and five ethnic ministry centers. It also sponsors a variety of programs and activities in conjunction with other local organizations. The diocesan patron saints are Our Lady of Guadalupe and Saint Andrew Dũng-Lạc. History The Catholic presence in present-day Orange County dates to the 1776 establishment of Mission San Juan Capistrano, a Spanish mission founded by Father Junipero Serra and the Franciscan order. At the time the region was part of the Las Californias province of New Spain. In 1804 present-day Orange County became part of Alta California when Las Californias was split in two; Alta California then became part of Mexico when the latter gained independence from Spain in 1821. From the mission, the missionary priests set out to convert the native population to Catholicism; over 4,000 people were converted between 1776 and 1847. In 1840, the Holy See erected the Diocese of the Two Californias to recognize the growth of the provinces of Alta California and Baja California. This diocese – with its episcopal see located in Monterey – included all Mexican territory west of the Colorado River and the Gulf of California (the modern U.S. states of California and Nevada, and parts of Utah, Arizona, and Colorado, as well as the modern Mexican states of Baja California and Baja California Sur). After Mexico ceded Alta California to the United States in 1848, after the Mexican–American War, the Mexican government objected to an American bishop having jurisdiction over