"Mission San Luis Rey de Francia is a former Spanish mission in the city of Oceanside, California. The mission was founded on June 13, 1798 by Padre Fermín Lasuén, and was the eighteenth of the Spanish missions established in California. Named for Saint Louis, the mission lent its name to the Luiseño tribe of Mission Indians.
The current church, built in 1811, is the third church built on this location. It is a beautiful example of Spanish mission architecture. Today the mission complex functions as a parish church of the Diocese of San Diego as well as a museum and retreat center.