The anceient Parish of Bamburgh was comprised of 22 "townships". One of these 22 territories was Adderstone.
The Northumberland Farm Index database which lists communities, villages, farms etc under their appropriate township and parish, show four entries
( Adderstone, Adderstone Hall , Adderstone Low Mill and Adderstone Mains*) within the Township of Adderstone, all within the Parish of Bamburgh.
(* "Mains" old name for farm, farm buildings adjacent to the Lord of the Manor's house.)
~~~~~~~~----
The National Gazetteer of 1868 entry..
" Adderstone:A township in the parish of Bamburgh, 3 miles south-east of Belford. Adderstone House is the chief residence"
~~~~~~~~------
Extract from " Goodwife Hot , Northumberland's Past in its Place Names" by Godrey Watson...
"Dorothy Foster, famous for the rescue of her brother Tom from the Tower of London after the '15 ( 1715 Jacobite Rebellion) came from Adderstone, as well as the blacksmith who helped her. The name however has no connection with " adderstyens" that fishermen used as lucky charms, thinking that the holes in them had been made by Adders. In fact it was " Eadred's Homestead"
As our old name for an Adder was Ether it might be thought that Etherstone might have such an association even if Atherstone had not. Nevertheless this was probably Ethelred's Homestead.
Michael