Queen Wilhelmina opens the Peace Palace in The Hague.

Wilhelmina was Queen of the Netherlands from 1890 until her abdication in 1948. She reigned for nearly 58 years, making her the longest-reigning monarch in Dutch history, as well as the longest-reigning female monarch outside the United Kingdom. Her reign saw World War I, the Dutch economic crisis of 1933 and World War II.

The Peace Palace is an international law administrative building in The Hague, Netherlands. It houses the International Court of Justice, the Permanent Court of Arbitration (PCA), The Hague Academy of International Law and the Peace Palace Library.

The Hague is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the country's administrative centre and its seat of government, and has been described as the country's de facto capital since the time of the Dutch Republic, while Amsterdam is the official capital of the Netherlands.