The Earl Derby stood on the corner of Southern Row and Bosworth Road.
The Earl Derby himself was Thomas Stanley, 1st Earl of Derby who fought at the battle of Bosworth.
Bosworth Road was the first street built as Kensal New Town started to expand to the east and was the first street (apart from Middle Row) not named after a compass point: East Row, Southern Row, West Row)
Once Bosworth Road was named, the pub came came along as an example of a back formation.
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