Ambrosius Aurelianus
The derivation of the name of the town is uncertain. It may derive from an Anglo-Saxon named "Ambre", or from the Old English "amore-burh" meaning 'fortification frequented by buntings or/and Yellowhammers'. It has also been suggested that the name is derived from Ambrosius Aurelianus, leader of Romano-British resistance to Saxon invasions in the 5th century.