Original sentence: During the Siege of Mainz by prussian and austrian troups in the Napoleonic Wars Kostheim had been severely damaged several times.In 1184 Frederick I, Holy Roman Emperor held one of the biggest diets of the middle ages at the Maaraue in Kostheim
Edited sentence: During the Siege of Mainz by prussian and Austrian troups in the Napoleonic Wars Kostheim had been severely damaged several times.In 1184 Frederick I, Holy Roman Emperor held one of the biggest diets of the Middle Ages at the Maaraue in Kostheim