Complex sentence: In June 1584, Pope Gregory XIII, appointed him Diocese of Bishop of Antequera, Oaxaca where he served until his death in February 16,1604.
Split into simpler sentences: In June 1584, Pope Gregory XIII, appointed him Diocese of Bishop of Antequera, Oaxaca. He served as Bishop of Antequera, Oaxaca until his death in February 16,1604.