Investigation Summary
Heidelberg Castle is a partially ruined Gothic-Renaissance complex above Heidelberg, Germany. Built from the 13th century as the seat of the Electoral Palatinate, it was destroyed by French forces in 1689–1693 and permanently abandoned after a lightning fire in 1764. It is now one of Germany's most visited cultural monuments, housing the 220,000-litre Great Heidelberg Tun.
Paranormal claims — a white lady apparition, an armoured knight, and a barrel-cellar spirit — all originate from unnamed tourism and paranormal-blog sources and carry low confidence with no verifiable historical basis.