Complex sentence: In 1635, they escaped again from imperial troops choosing Annweiler and Bischweiler in Alsace that both belonged to Pfalz-Zweibrucken.
Split into simpler sentences: In 1635, they escaped again from imperial troops. They chose to escape to Annweiler and Bischweiler in Alsace that both belonged to Pfalz-Zweibrucken.