Complex sentence: The 2013 Bavarian state election to determine the 187 members of the 16th Landtag of Bavaria will be held on 15 September 2013, or one week before the 2013 German federal election.
Split into simpler sentences: The 2013 Bavarian state election held on on 15 September 2013, determines the 187 members of the 16th Landtag of Bavaria. It was held one week before the 2013 German federal election.