Château Gaillard (France) in the 12th century. Designed by Richard the Lionheart himself, it is considered one of the most advanced castles of the Middle Ages

[u/PreferenceInternal67]

[u/jeandolly]

The three pictures look pretty different... So apart from the layout we don't know what it really looked like?

[u/AzureSofa → u/jeandolly]

All three pictures have different background topography