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.
1990 LEGO Sets
In 1990, LEGO released several new sets and themes, including the LEGO Pirates theme, which introduced models of pirate ships, islands, and treasure. 1990 was also the year that LEGO introduced the LEGO Fabuland theme, which was a line of sets featuring anthropomorphic animal characters living in a fictional town. The Fabuland theme was targeted towards younger children and was popular for its cute, colorful designs.