5310821 The Four Burgomasters of Amsterdam Learning of the Arrival of Maria de??Medici on 1 September 1638 (oil on panel) by Keyser, Thomas de (1596/7-1667); 28.5x38 cm; Mauritshuis, The Hague, The Netherlands; (add.info.: Italian Marie de\' Medici (1575-1642) was Queen of France as the second wife of King Henry IV (1553-1610) following whose assassination the day after her coronation, she acted as regent for her son, King Louis XIII. After conflict with Richelieu she fled to Brussels in 1630, visiting Amsterdam in 1638 where she was given an elaborate ceremonial royal entry).