Complex sentence: He was named in honor of the famous Benedict Arnold at a time during the American Revolutionary Warwhen he was still seen as a hero of the United States, stemming from the capture of Fort Ticonderoga.
Split into simpler sentences: He was named in honor of the famous Benedict Arnold. However, at the time the elder Arnold was still seen as a hero of the United States, stemming from the capture of Fort Ticonderoga.