PICO, Maria Antonia Tomasa was born Bef. 1776, Rio Piastla, San Javier de Cabazan, Sonora, Mexico; was christened Bef. 1776, Rio Piastla, San Javier de Cabazan, Sonora, Mexico; died May 1783, Los Angeles, Alta California; was buried 22 May 1783, Mission San Gabriel, Alta California.