Not a great deal is known about Nikola Firentinac (or “Niccolo of Florence”), except that he was probably born in Florence and certainly studied there, possibly as an apprentice to great Renaissance master Filippo Brunelleschi. He was invited to Šibenik to work on various parts of the Cathedral in the mid-1460s, and took over the whole project from Juraj Dalmatinac after the latter’s death in around 1475. It was under Firentinac that the cathedral’s famous roof was completed, and art historian remain divided as to whether Firentinac simly applied what he had learned from his predecessor or came up with innovative solutions of his own. Firentinac cemented his reputation as a great architect and sculptor with subsequent works: his Chapel of St John in Trogir Cathedral represents one of the high-points of Adriatic Renaissance art.