Complex sentence: Despite popular myths to the contrary, Simon Girty had no part in that war, except as a refugee when the British retreated from Fort Malden; nor was he killed with Tecumseh at the Battle of the Thames, as was widely reported.
Split into simpler sentences: Despite popular myths to the contrary, Simon Girty had no part in that war, except as a refugee when the British retreated from Fort Malden. Nor was he killed with Tecumseh at the Battle of the Thames, as was widely reported.