Caposele is a town and comune in the province of Avellino, Campania, Italy. The town was seriously damaged by the Irpinian earthquake of 1980.It borders with Calabritto, Bagnoli Irpino, Lioni, Teora, Conza della Campania, Castelnuovo di Conza, Laviano and Valva.The civil parishes (frazioni) are Buoninventre and Materdomini. Materdomini was the death place of Gerard Majella and for the Basilica dedicated to him.