Orange was the house whose prince usually became Stadtholder of the Dutch Republic. The word 'stadtholder' literally translates as 'stead-holder' or 'place keeper', and more loosely as 'steward'. The house wasn't just the source of governmental leaders. It still provides the heirs to the throne of the Netherlands.

Commissaris van de Koningin

That would be King William III of England. He was known as Stadtholder William III of Orange in the Netherlands. Incidentally he also ruled over Ireland.

That would be King William III of England. He was known as Stadtholder William III of Orange in the Netherlands. Incidentally he also ruled over Ireland.

William Henry of Orange, the only child of stadtholder William II, Prince of Orange and Mary, Princess Royal of England, was born in The Hague in the Dutch Republic on 4 November 1650.[4