Originally, Princess Day was celebrated in Holland on Wilhelmina's birthday (31 August), when she was still a princess.
ຕົ້ນກໍາເນີດ, ວັນ Princess ໄດ້ສະຫຼອງໃນ Holland ໃນວັນເດືອນປີເກີດ Wilhelmina ຂອງ (31 ສິງຫາ), ໃນເວລາທີ່ນາງຍັງ princess ໄດ້.