The monumental staircase, commonly named De Steegheere , which leads to the upper chapel, was built in from 1529 to 1533 in late Gothic and Renaissance style according to the drawings of Flemish painter and architect Lancelot Blondeel,[2][3] ornamented on the outside with sculpted statues. The aftermath of the French Revolution left the staircase badly damaged and it was decided in 1832 to move it 4 metres (13 ft) backwards and to rebuild it after removing the remaining ruins of the Oud Steen.[2][4] The gilded bronze statues represent Archduchess Isabelle of Burgundy, Mary of Burgundy, Thierry of Alsace and Philip of Alsace and, in the medallions, the Archdukes of Austria Albert VII and Maximilian III, Margaret of York and Sibylla of Anjou, wife of Thierry and daughter of King Fulk of Jerusalem.
