Francisco Hermenegildo Tomás Garcés (April 12, 1738 – July 18, 1781) was a Spanish Franciscan friar who served as a missionary and explorer in the colonial Viceroyalty of New Spain. He explored much of the southwestern region of North America, including present day Sonora and Baja California in Mexico, and the U.S. states of Arizona and California. He was killed along with his companion friars during an uprising by the Native American population, and they have been declared martyrs for the faith by the Catholic Church. The cause for his canonization was opened by the Church. History Garcés was born April 12, 1738, in Morata de Jalón, Aragon, north-central Spain. He entered the Franciscan Order about 1758 and was ordained a priest in 1763 in Spain. New Spain Garcés travelled to New Spain (Mexico) and served at the Franciscan college of Santa Cruz in Querétaro. In 1768, when the King of Spain expelled the Jesuits from their extensive mission system in northwestern New Spain (within present-day Baja California, northwestern Mexico, and the southwestern United States), Garcés was among the Franciscan replacements. He was assigned to Mission San Xavier del Bac in the Sonoran Desert, near present-day Tucson, Arizona. Missionary The expulsion of the Jesuits by the Spanish King set in motion a sequence of dramatic events in the missions. The Franciscans from the college of Santa Cruz in Querétaro took over responsibility in the Sonoran Desert missions region in the present-day Mexican state of Sonora and the U.S. state of Arizona. Meanwhile, other Franciscans from the college of San Fernando in Mexico City under the leadership of Junípero Serra, were assigned to replace the Jesuits in the Baja California missions of the lower Las Californias Province. Explorer Garcés became a key player in this effort, conducting extensive explorations in the Sonoran, Colorado, and Mojave Deserts, the Gila River, and the Colorado River from the Gulf of California and Lower Colorado River Valley to the Grand Canyon. He encountered and recorded accounts of the Native American tribes in their desert and riparian valley homelands, and established peaceable relations for the Crown, including with the Quechan, Mojave, Hopi, and Havasupai. Many journeys were explorations on his own in the deserts. He accompanied soldier-explorer Juan Bautista de Anza part way in both his large overland expeditions: the 1774 De Anza Expedition - first to reach Alta California's Pacific coast from the east; and