A little way north of the cathedral in Bari is the church of San Nicola, a large pilgrimage church begun in 1087 but not completed until 1197, which is one of the finest achievements of Romanesque architecture in Apulia. Inside, above the high altar, is a tabernacle and to the right of the altar is a "Madonna with Saints" by Vivarini.In the apse is the tomb (1593) of Bona Sforza, wife of King Sigismund II of Poland and last duchess of Bari (d. 1558) and a marble bishop''s throne.