Proper noun
A town and civil parish with a town council in Northumberland, and the northernmost town in England (OS grid ref NT9953).
A former local government district in Northumberland, England, abolished on 1 April 2009 and merged into the Northumberland unitary authority.
Source: en.wiktionary.orgBarton, from Berwick-upon-Tweed, competed at the Commonwealth Games earlier this month but was eliminated in the first round. Source: Internet
The Interpretation Act 1978 (cap. 30) provides that before 1 April 1974, "a reference to England includes Berwick-upon-Tweed and Monmouthshire ". Source: Internet