Complex sentence: In August 1682, Otermin fell ill so he requested to be replaced in the government of New Mexico, being substituted by Domingo Jironza Petrís de Cruzate.
Split into simpler sentences: In August 1682, Otermin fell ill so he requested to be replaced in the government of New Mexico. Thus, he was replacement by Domingo Jironza Petrís de Cruzate.