Chapel of S. Nicolau. Tomb ark of Bishop D. Afonso de Castelo Branco, great patron of Coimbrian art and culture in the 17th century. Tomb of D.Sizenando, first governor of Coimbra after the Christian Reconquest on 9 July 1064. Sizenando was a great diplomat responsible for the peaceful coexistence of the Muslim, Jewish and Christian communities.