José Matías Grez

José Matías Grez y Ubeda (1766–1840) was Chilean politician, mayor of Rancagua between 1804 and 1805. Born in Santiago to Juan Antonio Grez y Díaz-Pimienta and Manuela Josefa Ubeda y Vélez, Grez was educated at the Seminary of Santiago (Seminario de Santiago). He married Mercedes Fontecilla Valenzuela in 1800, with whom he had no children.