Llanfyllin is a small market town, neighborhood as well as electoral ward in a sparsely-populated area in Montgomeryshire, Powys, Wales. Llanfyllin's population in 2011 was 1,532, of whom 34.1% can speak Welsh. Llanfyllin means church or parish (llan) of St Myllin ('m' regularly alters to 'f' in Welsh). The town hinges on the valley of the River Cain near the Berwyn Mountains in Montgomeryshire, 14 miles (23 kilometres) southwest of Oswestry and also 15 miles (24 kilometres) from Montgomery. The River Cain is joined by the little River Abel in Llanfyllin (probably called after Cain and Abel in the Bible), as well as twists via the valley, flowing right into the River Vyrnwy at Llansantffraid. The town exists in between Shrewsbury and also Bala, for a very long time the essential market towns around of Wales as well as the Welsh borders. At close-by Bodyddon there is evidence of an early British settlement. Llanfyllin might be the "Mediolanum amongst the Ordovices" explained in Ptolemy's Geography (c.? ad 150), although others argue for Meifod or Caersws. The community is understood for its holy well, Fynnon Coed y Llan. The well is devoted to Saint Myllin, that is reputed to have baptised individuals below in the sixth century. The parish church is also committed to Saint Myllin. There is a tradition that Saint Myllin is the Irish bishop, Saint Mo Ling (additionally named Moling Luachra) (614-- 697). Nevertheless, this doubts. There is no record of Mo Ling taking a trip to Wales, and also there is a tradition that Myllin is buried under the church of Llanfyllin church whereas Mo Ling is believed to have been hidden at his abbey in Ireland.