Complex sentence: On October 18,2017, Pope Francis appointed Siegel the sixth bishop of the Diocese of Evansville, Indiana, to replace Bishop Charles C. Thompson, who was appointed Archbishop of the Archdiocese of Indianapolis earlier in 2017.
Split into simpler sentences: On October 18,2017, Siegel was appointed the sixth Bishop of the Diocese of Evansville, Indiana. Siegel replaces Bishop Charles C. Thompson, who was appointed Archbishop of the Archdiocese of Indianapolis earlier in 2017.