Either named after the House of Windsor (i.e the current Royal Family) or the town of Windsor itself.
It could be either – the House of Windsor only came into being in 1917, and although I would have guessed that the houses here are a little bit older than that, it could be that they were built at around that time and the streets were named Windsor in celebration.
In the time of George III, Windsor was part of the Diocese of Salisbury. King George donated an organ to Salisbury Cathedral – it’s now in Saint Thomas’ Church.
