The Black Knights were a faction of the Castle theme introduced in 1998. A total of 13 sets were released containing 3 major castles. Most of the castles and fortification where colored black and their symbol was a wyvern dragon. While The Black Knights subtheme was discontinued after 1994 the crest was still used in later sets.
1988 LEGO Sets
In 1988, Castle introduced the Black Knights era with imposing fortresses and dragon heraldry, while Town delivered large, feature-packed sets such as racetracks and service complexes. Futuron and Blacktron—introduced the prior year—remained central to Space, with sleek exploration craft set against bold, antagonist designs.