Fair of Mollerussa (referència ramadera) Activity · Mollerussa, Pla d'Urgell, Lleida Image of Mollerussa, not of the place itself. The Fira de Mollerussa is held in the capital of the Pla d'Urgell, whose name first appears documented in 1079 as Mulieruciam; the railway arrived in 1861 and in 1988 Law 5/1988 made it the head town of the new comarca. Photo: Vriullop (CC BY-SA 3.0) What to see and do in Mollerussa