England
Warwick Triumphant
The Lancastrian forces were led by Warwick and Clarence, along with Lord Oxford and Jasper Tudor. For his part, Edward had only about two thousand men up in Yorkshire, though the Marquess Montagu was hurrying to his aid with another six thousand.
The south counties welcomed Warwick, and he chose simply to go around London. The Lancastrian army added followers with every mile. Edward was waiting at Doncaster when he received crushing news. Lord Montagu, angry at having been replaced in Northumbria with Henry Percy, had turned coat and gone over to Lancaster. The six thousand reinforcements at a single stroke had become six thousand more enemies.
Edward could only run for his life. When he reached the coast at King's Lynn on 28 September, he had a mere eight hundred. Waiting to take him off were only three ships, so even among the eight hundred some had to be left behind. The ships sailed to Flanders, and the cause of York was lost.
On 3 October the Tower of London surrendered. Warwick entered the city three days later and immediately freed King Henry, cleaned him up, and brought him to Westminster. The feeble-minded king was crowned a second time at St Paul's on 13 October 1370.
Many exiled Lancastrians returned over that winter and at least some recovered their lands. But Warwick couldn't overturn too much of what Edward had done or he would lose more support than he had gained. He was still walking the tightrope.
In December that tightrope became even more precarious as France declared war on Burgundy. King Louis had finally decided to take on Charles the Bold. Getting involved in another war on the Continent would not endear Warwick to the commons, but at the same time he could hardly refrain from supporting the most important ally he had.