Shropshire runs close up to the Severn at Montgomery Castle upon the south bank, and English only is spoken by the Welsh population all down the valley from Moat Lane, though with the spring of the hills to the northward the native tongue still everywhere asserts itself. Around Welshpool, too, the Jones's, Hughes's, and Williams's begin to display the Shropshire type of man as opposed to the Welshman, whether English-speaking or otherwise. But the Severn turns away and clings to its native county for yet another 10 miles. Receiving the first of its three important affluents, the Vyrnwy from the north, it finally takes leave of Wales beneath the shadow of those imposing twins the Breiddons, which like a pair of huge sentinels stand guarding the gateway from the plains of north Shropshire into the hills of Wales. Indeed, the exit of the Severn, by this time a considerable river, from Welsh territory is finely marked, for when it has run a pleasant, uneventful course, touching by the way no place of note, to Shrewsbury, the westward view from the latter is significant and striking. To the last mile of Montgomeryshire, Wales stands finely out above the rich undulations of this once frontier and much harassed county, with singular distinction. The properly constituted Salopian as he stands upon the western outskirts of his town, where his famous school has in recent times perched itself above the high banks of Severn, sees his past laid out before him, like a page of history; the fat Saxon lowland spreading westward for a dozen miles, and the sharp rampart of Wales from north to south as far as the eye can see, height after height, range after range, almost precisely delimiting the outworks behind which for centuries lay a vigilant, unforgetting, and alien people, ready to strike at the first sign of over-confident negligence. This to the indifferent eye may seem ancient history, but it was real enough even as late as the days of Henry the Fourth, when for ten years Glyndwr kept the Border counties in a continual state of apprehension. Part of the walls are still standing, while the Severn, bending in horse-shoe shape round the town, still runs under both the _English_ and the _Welsh_ bridge, and the castle rises above the river-bank whence Henry the Fourth and his army marched out on that July morning 500 years ago to meet the Percies on the bloody field of Haytely.