Æglestherp, Aeglestherp, Ægelesthrep
A British plain where in 455, according to the Anglo-Saxon Chronicle, Vortigern fought a battle against Horsa and Hengist, and Horsa was killed.
Arthurian chroniclers place this battle at Episford.
See also
Saxons | The Legend of King Arthur
Source
Anglo-Saxon Chronicle | 9th century