BrickLink - Set 10176-1 : LEGO Royal King's Castle [Castle:Knights Kingdom I] - BrickLink Reference Catalog
What started as it's first dusting in a very long time turned into a full rebuild of this beautiful set, 10176. Lego should make more of the blocky style classic castles :
LEGO Special Edition Knight's Kingdom King's Castle 10176 with 12 Minifigures : Toys & Games - Amazon.com
LEGO 10176: King's Castle | Brickset: LEGO set guide and database