Complex sentence: Robert William Duncan, Jr. (born July 5,1948) was Bishop of the Episcopal Diocese of Pittsburgh in the Episcopal Church USA (ECUSA) from September 13,1997 to September 18,2008.
Split into simpler sentences: Robert William Duncan, Jr. (born July 5,1948) is an Anglican Bishop, formerly of the Episcopal Diocese of Pittsburgh in the Episcopal Church USA (ECUSA). He was Bishop of Pittsburgh from September 13,1997 to September 18,2008.