Meaning & History
Blagden is a locational surname deriving from any one of the places called Blackden or Blagdon, or Blagden farm in Hempstead, Essex. Blackden in Cheshire, Blagden in Essex and Blagdon in Northumberland share the same meaning and derivation, which is "the dark or black valley", derived from the Old English pre 7th Century "blaec", black, with "denu", valley, while the places called Blagdon in Devon, Dorset and Somerset, recorded as Blakedone in 1242, Blakeson in 1234, and Blachedone in the Domesday Book of 1086 respectively mean "the black hill", derived from the Old English "blaec", black, and "dun", down, hill, mountain. The modern surname can be found as Blackden, Blagden and Blagdon. So in short it means ‘the dark or black valley’