Dutch study reveals extent of wealth made via slavery from three past rulers

Report comes shortly before an expected apology from King Willem-Alexander in a speech in Amsterdam

Inside the stables of Paleis Noordeinde in The Hague is a golden coach embellished with images of colonial offerings to Dutch rulers that many, including the current Dutch king, regard as a symbol of exploitation that according to a new study netted three Dutch rulers the equivalent of more than €545m (£465m).

Historians have calculated the staggering value of colonial profit for Willem III (also king of England, Ireland and Scotland), Willem IV and Willem V in a report published at the request of the Dutch parliament last week before a widely expected apology over slavery from the Dutch king.