Question: Whose birth is celebrated by the annual holiday where Oranjegekte occurs?
Sentence (from "Oranjegekte"): It manifests itself in the wearing of orange clothing such as T-shirts, caps and scarfs; lavish attention for sports and sports fans in the media; and the decoration of cars, rooms, houses, shops, and even entire streets in orange, the traditional color of the Dutch royal family, the House of Orange-Nassau.
Relevant evidence: No