Dunbar fled to England calling for help in regaining Dunbar castle by force of arms. This help materialised in the spring of 1435 when Sir Robert Ogle, the Governor of Berwick upon Tweed, with Henry Percy and 4000 men marched north to retake the Castle. Angus, with Hepburn and Alexander Ramsay of Dalhousie, decided not to undergo a siege and engaged with the English forces at the Battle of Piperdean, near to Cockburnspath. This encounter resulted in defeat for the English but with little loss of life. Fifteen hundred prisoners were taken and ransomed.