The university declined rapidly and was on 18 October 1818 due to a Cabinet Order of Friedrich Wilhelm III. officially closed. At the same time, the University of Bonn was founded. Large parts of the Duisburg University Library were relocated to Bonn and then formed the basis of the newly formed Bonn Library. Also the sceptre of the University of Duisburg was given to the University of Bonn, and is available until today.
ວິທະຍາໄລໄດ້ຫຼຸດລົງຢ່າງໄວວາແລະນີ້ແມ່ນກ່ຽວກັບ 18 ຕຸລາ 1818 ອັນເນື່ອງມາຈາກຄໍາສັ່ງຫ້ອງການ Friedrich Wilhelm III. ປິດຢ່າງເປັນທາງການ. ໃນ​ເວ​ລາ​ດຽວ​ກັນ, ວິທະຍາໄລ Bonn ໄດ້ສ້າງຕັ້ງຂຶ້ນ. ພາກສ່ວນຂະຫນາດໃຫຍ່ຂອງຫໍສະຫມຸດວິທະຍາໄລ Duisburg ໄດ້ຍ້າຍໄປ Bonn ແລະຫຼັງຈາກນັ້ນສ້າງຕັ້ງຂຶ້ນບົນພື້ນຖານຂອງການສ້າງຕັ້ງຂຶ້ນໃຫມ່ ຫໍສະຫມຸດ Bonn. ນອກຈາກນີ້ຍັງ scepter ຂອງວິທະຍາໄລຂອງ Duisburg ໄດ້ຮັບການໃຫ້ວິທະຍາໄລ Bonn, ແລະສາມາດໃຊ້ໄດ້ຈົນກ່ວາໃນມື້ນີ້.