Festivities of invierno de Castellnou de Seana Activity · Castellnou de Seana, Pla d'Urgell, Lleida Image of Castellnou de Seana, not of the place itself. Castellnou de Seana's winter festival is held in a municipality located north of the river Corb that exceeded 1,500 inhabitants in 1920 before a long demographic decline, and from which Vila-sana separated in 1940. Photo: No machine-readable author provided. Chixoy assumed (based on copyright claims). (CC BY-SA 3.0) What to see and do in Castellnou de Seana