Complex sentence: This feat earned him the moniker of'the Soldier Priest', and although he survived the battle, Capistrano fell victim to the bubonic plague, which flourished in the unsanitary conditions prevailing among armies of the day.
Split into simpler sentences: This feat earned Capistrano the moniker of'the Soldier Priest'. Although he survived the battle, Capistrano fell victim to the bubonic plague, which flourished in the unsanitary conditions prevailing among armies of the day.