- Kingdom: Lleuddinyawn (capital)
- Coordinates: 55.5758 North, 2.4028 West
Din Peledyr was used as a fortification as early as 1000 B.C.E. and was used consistently until the creation of Antonine's Wall. When the Romans once again fell back to Hadrian's Wall around 220 A.D. it was reoccupied and remained active until the late fifth century at least.
- The Demon of Lleuenydd