Once Charles learnt that Hopton was being held at Devizes, he sent Wilmot to meet up with Prince Maurice and put together a Royalist army to free the town. The Royalists and Parliamentarians met at Roundway Down just north of Devizes. Wilmot was able to drive the Parliamentarians back towards the top of a steep slope where, as the Parliament army fell, many were killed. The slope is now known as Bloody Ditch.
Corfe Castle was being besieged by Parliamentary forces. Inside the castle Lady Mary Banks with a small number of defenders had managed to hold the castle against much larger number of men outside. Lady Mary's husband, Sir John Banks, was elsewhere with King Charles at the time. Prince Maurice attacked and drove off the Parliamentary besiegers.