After a fire in 1595 when the north-east part of the castle burned down, King Sigismund III Vasa decided to have it rebuilt with the work carried out under the direction of the Italian architect Giovanni Trevano. The Senator Stairs and the fireplace in the Bird Room date from this period. However, the castle still retains many of the earlier interiors designed by Berrecci. While many have been altered through neglect, war damage and, after World War II, through overenthusiastic restoration, the spirit of Berrecci's Renaissance ideals mingled with the Gothic motifs of local craftsmen still remains. The Ambassadors' Hall still retains much of its timber carving, most notable its coffered ceiling with thirty Gothic style carved heads by Sebastian Tauerbach.