# Castelnau

> English word · Proper noun

## Definitions
1. A road and neighbourhood in Barnes, borough of Richmond upon Thames, Greater London, England (OS grid ref TQ2277).

## Etymology
Originally from Occitan. Apparently named after the 10th Baron of Castelnau and St Croix, who lived in Barnes after fleeing from France.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/castelnau