London (City of), England, United Kingdom

51.514125

-0.093689

National Geospatial-Intelligence Agency. "GNS Search & Download WebApp" at Geographic Names Database ( https://geonames.nga.mil/geonames/GeographicNamesSearch/ : accessed 14 March, 2025). Entered Names Search field for forgien placename approved by the United States Board on Geographic Names.

U.S. Geologic Survey (USGS). “Archive database of 2021” at U.S. Geographic Information Names System (GNIS) (https://www.usgs.gov/us-board-on-geographic-names/download-gnis-data : accessed 31 May 2024).

"Terminology of the British Isles," a Wikipedia article, helps sort out the meanings of and relationships among the terms associated with geographic and politiecal entities found in the region: https://en.wikipedia.org/wiki/Terminology_of_the_British_Isles;