Machynlleth, often referred to informally as Mach, is a market town, community and selecting ward in Powys, Wales as well as within the historic borders of Montgomeryshire (Welsh: Sir Drefaldwyn). It is in the Dyfi Valley at the crossway of the A487 as well as the A489 roads. At the 2001 Census it had a population of 2,147, rising to 2,235 in 2011. Machynlleth was the seat of Owain Glyndwr's Welsh Parliament in 1404, and also thus insurance claims to be the "old capital of Wales". Nevertheless, it has actually never held any kind of main acknowledgment as a capital. It applied for city standing in 2000 and also 2002, however was unsuccessful. It is twinned with Belleville, Michigan. Machynlleth hosted the National Eisteddfod in 1937 and 1981.