sentences:  Leaving a garrison of 100 men under Colonel John Hamilton to hold the castle, the army continued south.After turning back from Derby on 6 December, the Jacobites reached Carlisle on 19 December and after considerable discussion, continued into Scotland on 20th, leaving a garrison of around 400.It is generally agreed Prince Charles did so to demonstrate his determination to return but the wisdom of the decision almost unanimously condemned, both at the time and by historians since.