• Was a Catalan Gothic painter and miniaturist.
• He was active in the early 14th century, as proved by two documents which attest him working in two chapels at Sitges.
• Ten years later he worked for Alfonso IV of Aragon, executing miniatures for the manuscripts of the Uses of Barcelona and the Costumes of Catalonia
• His production increased during the reign of Peter IV of Aragon, especially under royal commissions, such as the Christ and the Virgin in royal chapel of Barcelona (1344).
• His main surviving work is the series of wall paintings in the St. Michael Chapel in the Monastery of Pedralbes.
• It includes twenty scenes basing on two main themes: the Passion of Christ and the Seven Pains of the Virgin.
• Also attributed to Bassa are a Coronation of the Virgin in the church of Bellpuig and a St. Bernard in the museum of Vich.
• His son Arnau was also a painter.
• They both died of plague in 1348.
