They were the 6057 Sea Serpent (the biggest Lego Castle boat ever released in the 1990s) and 6009 Black Knight, a small set that included a single, full armored knight, along with the new dragon plume and shield accessories. A number of new accessories were created for the three new sets, including a new oval shaped shield with a different dragon design usually carried by mounted knights, new dragon plumes available in four different colors (just like the feather plumes) which added side dragon wing plumes to the movable visors on knight helmets. These sets, along with Wolfpack, were the first castle sets to have minifigures with mustache and beard faces. The older dragon triangular shield was still used in the sets for infantry and guards. Older sets such as the Knights Stronghold and Black Monarch's Ghost were retroactively included as part of the Black Knights. Like the Black Falcons and Lion Knights/Crusaders, the Black Knights were in conflict with the Forestmen. The Lion Knights and Black Knights were featured together in only one set, the 1584 Knight's Challenge, and were merged into a "Castle" faction in 1990 and 1991 before being separated for 1992. As the 6059 Knights Stronghold and 6057 Sea Serpent featured the Black Falcons, this suggested that the two factions were rivals, particularly in Knights Stronghold where the Black Knights defend the gates against a Black Falcons siege. The Black Knights were also opponents to the Wolfpack Renegades (the 1992 catalogue diorama shows Black Knights soldiers pursuing a Wolfpack Renegade wagon, while the Black Knight's Castle contains a Wolfpack figure as a prisoner) and Dragon Masters (the 1993 catalogue diorama shows Majisto the Wizard on a dragon engaging two mounted Black Knights). The Black Knights series continued until the end of 1994 when they were superseded by the Royal Knights in 1995. One of the last Black Knights sets released was 1917 King's Catapult in 1993, a miniset that included a knight who manned a tiny catapult. It was re-released in 1998. The Wolfpack Renegades were a group of bandits in the LEGO Castle world. Only three sets were made, making it the smallest Castle factions. Their main hideout was 6075 Wolfpack Tower that included three renegades and a ghost. The Wolfpack was one of the official opponents of the Black Knights during its short run, as the 1992 catalogue diorama shows Black Knights soldiers pursuing a Wolfpack Renegade wagon, while the Black Knight's Castle contains a Wolfpack figure as a prisoner.