Roger gave his name to the estate of Plas Kynaston, lands which he also owned in
Cefn Mawr, North Wales. Dennis Davies writes in "The History of Plas Kynaston": :"Henry did not receive a rapturous welcome in Wales. On 8 August 1485, at
Haverfordwest, he received a crushing blow – John Savage, nephew of Henry's stepfather, and the powerful Welsh lord, Rhys ap Thomas, were not planning to support his cause. Of course, they had promised otherwise while he was in France but
Richard III suspected both men of disloyalty – and before Henry landed, he made certain they understood the penalty of treason. With this crushing news, even the professed loyalty of Pembroke was small consolation. Henry's march from Havefordwest northeast to Cardigan and there to
Machynlleth (about 100 miles from the Dale settlement) is not documented. He arrived at Machynlleth on 14 August and wrote a letter to Sir Roger Kynaston, the guardian of the Grey estates; to pass safely to
Shrewsbury, Henry needed – at the very least – Kynaston's inaction. The guardian didn't need to declare for him but he could at least not impede his progress. Whatever Kynaston's decision, Henry did pass safely through to Shrewsbury. To get to this point, his force had marched through the mountains of Wales but they had the continual arrival of good news to cheer them on the lonely journey – supporters were marching to join them, bringing along much-needed supplies. Among these supporters was Rhys ap Thomas, who finally decided to honour his previous promise. Rhys later said he brought almost 2000 men with him; if true, his force made up a third of Henry's entire army. They were in time to join Henry at Shrewsbury, the traditional gateway to the English midlands; they marched along the old Roman road even as supporters sent along money to pay the mercenary troops. But at Shrewsbury, Henry's progress was no longer easy". ==References==