Complex sentence: This account inspired the future claims of the Grail, including the claim involving the Nanteos Cup on display in the museum in Aberystwyth; however, it should be noted that there is no reference to this tradition in ancient or medieval text.
Split into simpler sentences: This account inspired the future claims of the Grail, including the claim involving the Nanteos Cup on display in the museum in Aberystwyth. There is no reference to this tradition in ancient or medieval text.