This page lists historical and other events on January 7th in Catalonia and the Catalan-speaking countries as well as festivals and a list of births and deaths of well-known Catalans.
1833 - Tremp (Pallars Jussà): Josep Manyanet i Vives, Catalan priest (died 1901).
1836 - València: Teodor Llorente, poet and politician, main representative of the Valencian Renaixença.
1841 - València: Antonio García Peris, Valencian photographer.
1854 - Barcelona: Remei Morlius i Balanzó, Barcelonan poet, educator and writer
1855 - Barcelona: Raimon Casellas i Dou, Catalan journalist, art critic, modernista narrator and collector.
1921 - Barcelona: Felícia Fuster i Viladecans, Barcelonan writer.
1962 - Gratallops, Priorat: Josep-Enric Balaguer i Pelegrí, Catalan painter.
1867 - Barcelona: Antoni Casanovas i Bosch, textile businessman and mayor of Sabadell.
1947 - València: Bernat Morales i Sanmartín, playwright, novelist, composer and journalist (born 1864).
2011 - València: Joan Piquer i Simón, Valencian film maker (born 1936).
January 7th is the Saints' Day of Sant Ramon de Penyafort, who is a medieval Catalan saint and the patron of many parishes around Catalonia so there are quite a few celebrations in his honour but, as far as I know, no actual festivals.