The Dutch media has speculated that the queen was abdicating to spend more time with her second son Friso, who was injured in an avalanche at an Austrian ski resort last year.
Worn by Marie de Medici during her 1610 coronation as the queen of France, it later passed on to the House of Orange-Nassau, now the Dutch royal family, and then to the collection of the queen of England before arriving in Prussia in 1702.