sentences:  With the Royalists concentrated around Evesham and Pershore, Essex was able to march back up into the Cotswolds in the direction of Cirencester, where he defeated the 400-strong Royalist garrison on 16 September.Essex believed he had etablished a commanding lead over Charles and, not wishing to drive his hungry army too hard, slowed his pace on the march to Swindon.He was further slowed after Swindon when Rupert's cavalry caught up, and the resulting Battle of Aldbourne Chase on 18 September allowed the rest of the Royalist army to close the distance.