diocese of Monterey, California
Comprises the counties of Monterey, Santa Cruz, San Benito, and San Luis Obispo.
Established on 27 April 1840 as the diocese of Two Californias, Mexico from territory split from the diocese of Sonora.
Name changed to the diocese of Monterey on 20 November 1849.
Split in 29 July 1853, and its metropolitan changed to the archdiocese of San Francisco.
Split, name changed to the diocese of Monterey-Fresno, and metropolitan changed to the archdiocese of Los Angeles on 1 June 1922.
Split and name changed to the diocese of Monterey in California on 6 October 1967.
New Catholic Dictionary