Black Sheep Monty Python's Holy Grail Black Knight's Reserve

Also known as Black Sheep Riggwelter (Bottle)
Commercial description
Dark Yorkshire Ale
Tempered over burning witches.
A deep, ruby-chestnut brown ale topped by a near-white creamy head; rewards with a complex palate from roasted Marris Otter and Pale Chocolate Malts, and a dry Goldings hop finish. Cheers!
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Black Sheep Riggwelter (Bottle)

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.