Paxton & Whitfield is the oldest cheesemonger in London. Opened in 1797, it was actually opened by a Mr. Sam Cullen who became partners with Paxton & Whitfield, but I guess they muscled him out. They began supplying the royal household in 1850 and for some time became a regular grocery store during the World Wars when cheese became scarce.
They have a large variety of continental cheese, a focus the store turned to when cheese in London became an industrialized product. Later they moved back to carrying a large selection of cheeses from the UK including Ireland and Wales.