What is "hofvijver"

The Hofvijver is a pond in the centre of The Hague. It is adjoined in the east by the Korte Vijverberg (road), in the south by the Binnenhof and the Mauritshuis, in the west by the Buitenhof and in the north by the Lange Vijverberg (road). In the middle there is a small island with plants and trees which has no name, it is usually referred to as "the island in the Vijverberg".