Complex sentence: Having failed by force, Charles VII, tried to take the city otherwise, in 1430, he staged a plot that was discovered by the English, and lead to the hanging of 6 Parisians on the scaffold.
Split into simpler sentences: Having failed by force, Charles VII, tried to take the city otherwise. In 1430, he staged a plot that was discovered by the English, and lead to the hanging of 6 Parisians on the scaffold.