Excluding the Chess Set, the largest set of this theme is Medieval Market Village (10193). The last sets of this incarnation of Castle were released in 2009 and were replaced by a new environment, Kingdoms, in 2010.
Except for the Chess Set, the biggest set with this theme is Medieval Market Village (10193).  The final sets of this Castle version were released in 2009 and were replaced by a new setting called Kingdoms in 2010.